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TRANSCRIPT
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INTRODUCTION
With a vast coastal diversity and heterogeneous forest, Region 1, popularly known as the Ilocos Region, is envisioned to be the northern springboard of environment and development in Asia. With its improving economic growth and with the capacity to produce high quality products extracted from the diversified resources, Region I will surely achieve its development vision in the years to come.
However, the need to give attention to the resources or raw materials of the Region is very important. The environment and the economy should intricately merge and work together to suppress or lessen resource depletion and destruction which results to environmental degradation and consequently, lead to economic vulnerability.
There are many things to watch out for in the region’s development. Resource degradation brought about by anthropogenic activities such as improper waste disposal, excessive use of inorganic fertilizers, and deforestation may result to loss of biological diversity, water scarcity, aerobic pollution and other environmental problems which could affect the ecosystem of the things we need for survival.
In context, development in the Region should be made in a sustainable manner that will mean a balance of better quality of life from present to future existence and a better quality of ecological niche.
The Regional State of Brown Environment (RSoBE) 2019 is a consolidated Report on the status of Air Quality, Water Quality, Solid Waste Management, Toxic Chemicals and Hazardous Waste Management, and Environmental Impact Assessment in Region I. The report provides objective and comprehensive state of brown environment and identifies environmental challenges and concerns. These could be used as bases for recommendations to address specific environmental issues and improve the
condition of the environment. This RSoBE 2019 presents insights and information to planners and administrators for use in policy planning and formulation.
Data presented in the report can be used by researchers from the academe, research institutions and/or non-government organizations in preparing relevant proposals/studies. Furthermore, this RSoBE 2019 report can provide environmental information, awareness and consciousness to all concerned citizens in the Region. The need to protect and conserve our environment will ultimately depend on how humans deal with and extract from it. ENVIRONMENTAL MANAGEMENT BUREAU - I MISSION AND VISION
OUR MISSION TO PROTECT, RESTORE AND ENHANCE ENVIRONMENTAL QUALITY TOWARDS GOOD PUBLIC HEALTH, ENVIRONMENTAL INTEGRITY AND ECONOMIC VIABILITY. OUR VISION A NATION EMPOWERED TO PROTECT OUR FINITE NATURAL RESOURCES, ATTUNED TO THE PURSUIT OF SUSTAINABLE DEVELOPMENT, FOR A CLEAN & HEALTHY ENVIRONMENT THAT ENHANCES THE FILIPINO QUALITY OF LIFE FOR PRESENT AND FUTURE GENERATIONS.
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REGIONAL STATE OF BROWN ENVIRONMENT 2019 DENR-Environmental Management Bureau - Region I
EXECUTIVE SUMMARY
The Environmental Management
Bureau (EMB) of the Department of Environment and Natural Resources (DENR) has a vital mission to protect, restore and enhance environmental quality towards good public health, environmental integrity and economic viability, and implement significant environmental laws. In 2019, EMB-Region I has once again showcased the undying commitment of its dynamic workforce to perform its mandated functions, all for the benefit of Mother Nature.
EMB-Region I is one of the primary agencies responsible in monitoring the quality of the environment in Northern Luzon. The major environmental laws implemented by the Bureau are the following: Presidential Decree 1586 (Environmental Impact Statement System), R.A. 8749 (Clean Air Act of 1999), R.A. 9275 (Clean Water Act of 2004), R.A. 6969 (Toxic Substances and Hazardous and Nuclear Wastes Control Act of 1990), R.A. 9003 (Ecological Solid Waste Management Act of 2000) and R.A. 9512 (National Environmental Awareness and Education Act of 2008).
ENVIRONMENTAL IMPACT ASSESSMENT
For the calendar year (CY) 2019, there were a total of Four Hundred Thirty Three (433) projects that have been issued with Environmental Compliance Certificates (ECC), which were processed online. Based on records, most of the issued ECCs are located/to be developed within the Province of Pangasinan which is about 43% (186 ECCs) of the total number of approved ECCs in CY 2019. Ninety three (93) ECCs (21.5%) were issued covering various projects/undertakings within the Province of Ilocos Norte; while seventy eight (78) (18%) and seventy six (76) (17.6%) ECCs were issued by EMB-Region I for projects/undertakings that are to be located/established within the provinces of La Union and Ilocos Sur, respectively.
The top three (3) project types with the highest number of issued ECCs for CY 2019 were Resource Extractive Industries (Sand and Gravel Quarry Projects) with One Hundred Eighteen (118) ECCs, followed by Petroleum Industries (Gasoline Refilling Stations) with One Hundred Nine (109) ECCs, and Infrastructure Projects with Sixty Seven (67) ECCs.
AIR QUALITY MANAGEMENT
The ambient air quality monitoring in selected areas is a continuing activity of DENR-EMB Region I to assess a part of the quality of air covering the entire country. The said activity is in compliance with Part V, Rule XIV, Section 1 of the Implementing
REGIONAL STATE OF BROWN ENVIRONMENT 2019 DENR-Environmental Management Bureau - Region I
Rules and Regulations of R.A. 8749 entitled “Air Quality Management System”. It aims to protect public health and welfare and reduce damage to property as well as provide an air quality management control strategy from mobile, area and stationary sources.
EMB-I conducted year-round
ambient air quality monitoring using the three automatic air quality monitoring equipment and three manual operating air samplers. State-of-the-art Differential Optical Absorption Spectroscopy (DOAS) are located in Urdaneta City, Pangasinan and City of San Fernando, La Union and a Particulate Matter System (PMS) is installed in Batac, Ilocos Norte. A Manual Particulate Matter 2.5 (PM 2.5) Air Sampler is stationed in Dagupan City and PM 10 air samplers are positioned in San Carlos City, Pangasinan and Vigan City, Ilocos Sur.
Differential Optical Absorption
Spectroscopy (DOAS), is a widely used method to determine concentrations of atmospheric parameters. DOAS Urdaneta City monitors nine (9) hazardous criteria pollutants namely: Carbon Monoxide (CO), Photochemical Oxidants as Ozone (O3), Sulfur Dioxide (SO2), Nitrogen Dioxide (NO2), Particulate Matter 10 and Particulate Matter 2.5, Benzene, Toluene and Xylene. The pollutant concentrations for CY 2019 are all within the National Ambient Air Quality Guideline Values (NAAQGV) and met the yearly monitoring guideline value.
The CY 2019 monitoring data of
the DOAS installed at the vicinity of PNP Camp Florendo, Brgy. Parian, San Fernando City, La Union showed that pollutant concentrations for CY 2019 are all within the NAAQGV and met the long term guideline values.
The continuous ambient air
monitoring network located inside the compound of Mariano Marcos State University, Brgy. Quiling Sur, City of Batac, Ilocos Norte recorded annual geometric mean for PM 10 and PM 2.5 that consistently met the NAAQGV.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 DENR-Environmental Management Bureau - Region I
The Ambient Air Quality
Monitoring Station (PM 10) located infront of the Vigan City Hall, Vigan City, Ilocos Sur recorded an annual average which met the NAAQGV while the annual geometric value reflected a fair air quality index possibly due to the heavy traffic congestion within the monitoring station and influx of tourist arrival in the city.
The Ambient Air Quality Monitoring Station (PM 2.5) located in the City Plaza of San Carlos City, Pangasinan showed that the annual geometric mean did not meet the annual National Ambient Air Quality Guideline Value.
The Ambient Air Quality
Monitoring Station (PM 2.5) located within the compound of the CSI Mall, De Venecia Road, Lucao District, Dagupan City, Pangasinan recorded an annual geometric mean which did not meet the annual National Ambient Air Quality Guideline Value.
WATER QUALITY MANAGEMENT
Region I has three designated Water Quality Management Areas (WQMA), namely the Sinocalan-Dagupan River System, Naguilian River System, and Lower Amburayan River System.
Section 5 of the Clean Water Act provides for the designation by the Department of Environment and Natural Resources (DENR) in coordination with National Water Resources Board (NWRB), of certain areas such as watersheds, river basins or water resources regions that share common interests or face similar development programs and prospects as water quality management areas (WQMA).
Water quality monitoring was conducted monthly in the established six (6) monitoring stations for the proposed designation of Bolo River System Water Quality Management Area; thirty- seven (37) monitoring stations in the three (3) designated WQMAs; eleven (11) monitoring stations in the two identified priority rivers (Agno & Abra Rivers); while quarterly monitoring was conducted in the 41 established recreational waterbodies and twenty three (23) adopted waterbodies. Generally, the results of all the monitoring of the river systems in the Region meet the physico –
REGIONAL STATE OF BROWN ENVIRONMENT 2019 DENR-Environmental Management Bureau - Region I
chemical parameters except for Fecal Coliform.
Beach eco-watch monitoring was conducted on a monthly basis for the monitoring of Total Coliform (TC) and Fecal Coliform (FC) which are the basic parameters to determine the water quality of bathing beaches. EMB-Region I sustained forty-one (41) established monitoring stations for bathing beaches in the region which are often visited by tourists. Generally, the results of water quality monitoring for the annual geometric mean values are within the set DENR water quality guideline for Total Coliform (TC). Most of the results of Fecal Coliform (FC) monitoring showed that the annual geometric mean values are within the DENR water quality guideline value.
Since the Adopt-an-Estero program was launched, EMB Region I has been convening partners from all over the region to continuously engage them in the clean-up and rehabilitation of esteros and river tributaries they adopted. Activities under the said program include community mobilization, dredging of the creeks, regular clean-up drive and other livelihood programs. In 2019, the region has a total of forty-seven (47) signed Memorandum of Agreements (MOA). The eight-year (2011-2019) implementation of the Adopt-an-Estero/Waterbody Program along the designated Sinocalan-Dagupan River System Water Quality Management Area (SDRS-WQMA) tremendously recorded 75%-95% decrease in the concentration of coliform in the twenty-two (22) established water quality monitoring stations in the SDRS-WQMA.
TOXIC AND HAZARDOUS WASTE MANAGEMENT
EMB-Region I has been
consistently implementing the requirements of the Toxic Chemical Substances (Title II) among its regulated firms and establishments. Two office divisions, the Environmental Monitoring and Enforcement Division (EMED) and the Clearance and Permitting Division (CPD) serve as the implementing body of the region for effective enforcement of the technical requirements of Republic Act 6969. Requirements cover the implementation of the Philippine Inventory of Chemical and Chemical Substances (PICCS), Priority Chemical List (PCL), and the Chemical Control Orders (CCOs) for Mercury (DAO 38-1997), Asbestos (DAO 2000-02), Ozone-depleting Substances (DAO 18-2000), Polychlorinated Biphenyls (DAO 2004-02), Cyanide (DAO 1997-39), and Lead (DAO 2013-24).
REGIONAL STATE OF BROWN ENVIRONMENT 2019 DENR-Environmental Management Bureau - Region I
For C.Y. 2019, the EMB-Region 1 Clearance and Permitting Division has registered 11 industries under the Chemical Control Order, four chemical importers/manufacturers were surveyed, three PCB-owners were notified for registration, and fifteen PCB management plans were approved. On the other hand, the Environmental Monitoring and Enforcement Division (EMED) has monitored 13 CCO-registered industries, 41 firms were inspected regarding their PCB management plan implementation, one validated firm for PCB phase-out, and one accomplished Annual Toxic Chemicals Regional Status Report.
SOLID WASTE MANAGEMENT
Waste generation continues to rise
with the increase in population,
improvement of living standards, rapid
economic growth, and industrialization
especially in the urban areas. From 471.3
tons per day in 2018, the region’s waste
generation increased to 501.76 tons per
day in 2019. Although the increase in the
recorded waste generation may be
viewed negatively, it is important to note
that more local government units have
submitted their Self Compliance
Monitoring and Assessment Report
(SCMAR) for 2019. The improvement in
the submission of the said report is vital in
the development of a database and
monitoring of the status of the
implementation of R.A. 9003 in the
region.
In 2019, eighteen (18) 10-Year
Solid Waste Management Plans were
approved by the National Solid Waste
Management Commission (NSWMC),
summing up a total of thirty-eight (38)
approved city/municipal plans and two (2)
provincial plans from C.Y. 2014 to 2019.
All the 125 LGUs and 4 Provinces in the
region have submitted their respective 10-
Year Solid Waste Management Plan that is
either under evaluation or for revision, if
not yet approved by the NSWMC.
R.A. 9003 requires LGUs to close
their existing open dumpsites and to
establish controlled disposal facilities or
Sanitary Landfills (SLF). As of 2019, there
are still two (2) open dumpsites (OD);
twenty-nine (29) controlled dumpsites
(CD); twenty-nine (29) sanitary landfills
(SLF); sixty-four (64) closed dumpsites of
which forty – one (41) are under
rehabilitation; and two (2) LGUs have no
dumpsite facility.
As of C.Y. 2019, thirty-six (36) local
government units (LGUs) were provided
with financial assistance for the
construction and establishment of
central/municipal materials recovery
facility (MRF) and purchase of bio
shredder. A total of 21 Million Pesos (Php
21,000,000.00) financial support was
awarded to 36 LGUs in the Region.
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DENR-Environmental Management Bureau - Region I
REGIONAL PROFILE
GEOGRAPHY
Physical Characteristics
Location and Land Area. Collectively known as Ilocandia, this northwestern part of Luzon
would have remained a wasteland without the tough, headstrong, ingenious and spirited
inhabitants who were determined to overcome a hostile environment.
Ilocandia is about two-thirds mountain range. The Cordilleras run along its eastern side. Off
its western side is the West Philippine Sea. Between sea and mountain is a corridor so narrow
that in some places mountain and sea almost meet.
Originally, there was only one province of the Ilocos, which even in pre-spanish times was
among the most thickly populated areas in the country. A burgeoning population made
imperative the creation of different provinces:
Pangasinan in 1611, Ilocos Norte and Ilocos Sur in 1818, Abra in 1846, La Union in 1854,
Mountain Province in 1908 (By the Americans) and Benguet in 1966 (Republic Act 4695).
Figure 1. Geographic Location of Region 1
Pangasinan
Pangasinan is the third biggest province in the whole Philippine archipelago which derived its
name from salt in the vernacular. The province is crescent-shaped and occupies 5,368.82
square kilometers of land area which constitutes almost one half (41.81%) of the total land
area of the region and 1.8% of the total land area of the Philippines. Pangasinan also occupies
285.66 kilometers of coastal line.
It is composed of four (4) cities and forty four (44) municipalities, six (6) districts and one
thousand three hundred sixty four (1,364) barangays and with provincial capital which is
Lingayen. It is bounded by Lingayen Gulf, La Union and Benguet on the north side, Nueva
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Viscaya on the northeast, Nueva Ecija on the east, Tarlac on the south and Zambales and
West Philippine Sea on the western part of the province.
Because of its geographical positioning, it has always been described as the gateway of sorts.
Most travelers going up north often remember Pangasinan as the place where they had last
seen some semblance of civilization, comparing it with the sparsely populated regions of the
Ilocos and Cagayan Valley (with the exeption of Baguio and also the Spanish town of Vigan
and Laoag).
The Pangasinan language or Pangasinense is an agglutinative language. It belongs to
the Malayo-Polynesian languages branch of the Austronesian languages family and is the
primary language of the province of Pangasinan. The Pangasinan language is similar to the
other Malayo-Polynesian languages of_the Philippines, Indonesia, Ma-laysia and Madag-
ascar. It is closely related to the Ibaloi language spoken in the neighboring province
of Benguet, located north of Pangasinan. The Pangasinan language is classified under the
Pangasinic group of languages. One enters the region through Pangasinan which occupies the
northern portion of the vast central plain of Luzon. Seaward is Lingayen Gulf, which has rich
resources of fish and other forms of marine life. The sprawling rice fields and other cultivated
areas are fertile lands enriched by Agno River and are considered among the best agricultural
lands in the country.
Figure 2. Geographic Location of Pangasinan
La Union
Northward beyond the Pangasinan plain lies La Union, the commercial tourism and
administrative government center of the region. It is narrow and hilly, squeezed in between
mountain and sea, but boasting of beautiful beaches along its irregular coastline.
Located in the southwestern part of Region 1, La Union is bordered by Ilocos Sur to the north,
Benguet Province to the east, Pangasinan to the south and the vast West Philippine Sea to the
west. With a land area of 1,493.09 square kilometers, La Union occupies 11.62% of the total
land area of Region 1. La Union also consists of nineteen (19) municipalities with one (1)
city, five hundred seventy six (576) barangays and two (2) congressional districts. This
province is situated two hundred seventy three (273) kilometers north of Manila and fifty
seven (57) kilometers Northwest of Baguio City. It is accessible from San Fernando City
International Airport, Poro Point Pier and by land.
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Predominantly hilly terrain that gradually rises eastward from the shore, the original “dozen”
towns have grown to nineteen (19) municipalities and a city. The additional eight (8) are:
Santol, San Gabriel, Bagulin, Burgos, Pugo, Tubao, Rosario and Sudipen.
Figure 3. Geographic Location of La Union
Ilocos Sur
Ilocos Sur is relatively uneven in physical features, located along the western coast of
Northern Luzon. It is bordered by Ilocos Norte to the north, Abra to the northeast, Mountain
Province to the east, Benguet to the southeast, La Union to the south and the West Philippine
Sea to the west. Its area of 2, 579.58 square kilometers occupies about 20.11% of the total
land area of Region 1.
The province falls within latitudes 16°40’ to 17°54’ north and longitudes 120°20’ to 120°56’
east. Vigan City is the provincial capital which is located on the mouth of Mestizo River,
approximately 408 kilometers by road from Manila, 139 kilometers north of San Fernando
City and 80 kilometers south of Laoag City.
The topography of Ilocos Sur is undulating to rolling with elevations ranging from 10 to 1,
700 meters (33 to 5,600 ft.) above sea level. The province is composed of thirty two (32)
municipalities, two (2) component cities and seven hundred sixty eight (768) barangays.
Of the municipalities, twenty (20) are identified as lowland areas and the remaining twelve
(12) are considered upland areas. Among the municipalities, Quirino and Cervantes have the
largest area covering about 18.30% of the total provincial area while Sta. Catalina and San
Vicente occupy the smallest area of only 28.60 square kilometers or 1.1% of the total
provincial area. The relief changes from hilly to mountainous with slopes varying from 30-
50% and the coastal plain is level undulating (0-3%) occupying an area of 940 square
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kilometers with several low hills scattered at random all throughout the entire length of the
province. Approximately 23.7% of the province’s total land area is cropland.
Figure 4. Geographic Location of Ilocos Sur
Ilocos Norte
Ilocos Norte is located in the northwestern part of Luzon and is geographically situated
between 17°43’ and 18°29’ north latitudes and 120°25’ and 120°58’ east longitudes. It is
bounded in east by Cagayan and Apayao, in the southeast by Abra, in the south by Ilocos Sur
and in the west by the West Philippine China Sea. Laoag City is the seat of the provincial
government and is about 487 kilometers north-northwestern of Manila. Ilocos Norte has a
total land area of 3, 622.91 square kilometers. It is rugged and rocky and has mountains which
run northwest in the Cordilleras in the east. There are thirteen (13) mountains in the area,
most of which are located in the southern portion of the province.
The province has two (2) congressional districts comprising twenty one (21) municipalities
and two (2) component cities. The province has a total of five hundred fifty seven (557)
barangays. This includes the eighty (80) barangays of Laoag City and the fourty three (43)
barangays of Batac City.
Located in the northwestern part of Luzon, Ilocos Norte settles on a wide plain between the
foothills of the Central Cordillera ranges on the east and the West Philippine Sea on the west.
The winding and rugged mountain ranges extend to Abra in the south. Its backbone angles
steepy towards southwest and wedges through Ilocos Sur.
Land Forms and Slope Category. The region’s land slope is categorized into five (5)
groups. The first category is the 0 to 8 percent slope or level to undulating islands. These are
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irrigable lands highly suitable for agricultural, urban, industrial and other related uses. More
than one-half of these slope categories are found in Pangasinan. The second category is the 8
to 18 percent slope or undulating to rolling lands. These lands have a wide variety of uses,
with agricultural options ranging from seasonal to permanent crops. Most of this slope
category is found in Pangasinan and Ilocos Norte.
Figure 5. Geographic Location of Ilocos Norte
The third category is the 18 to 30 percent slope, or rolling to moderately steep areas. These
are generally considered as marginal lands for most of the agricultural crops require tillage.
Some have deep friable soils which, when planted with many economic trees, can be
productive given ideal environmental conditions. Region 1 occupies the narrow plain between
the Cordillera central mountain range and the West Philippine Sea. It also occupies the
northern portion of Central Luzon plain to the north-east of the Zambales Mountains.
Region 1 is generally composed of level to undulating to rolling plains with a hilly and
mountainous portions concentrated in the intermediate hillsides of the Cordillera Mountain
Ranges and part of Zambales Mountain. Specifically, Ilocos Norte is determined with alluvial
plains, hills, mountains, coastal and miscellaneous land types. Its terrain is generally
mountainous and rocky. However, Ilocos Sur is determined with undulating to rolling with
elevations ranging from 10 to 1,700 meters above sea level. La Union is predominantly hilly
terrain that gradually rises eastward from the shore and Pangasinan is generally level to
undulating to rolling plains with the hilly and mountainous areas concentrated in the eastern
portion of the province.
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Topographic survey information is historically based upon the notes of surveyors. They may
have derived naming and cultural information from other local sources, including boundaries
delineation often derived from cadastral mapping. While of historical interest, these field
notes inherently include errors and contradictions that were resolved in later stages of map
production. Most modern topographic mapping includes a large component of remotely
sensed data in its compilation process.
Land Classification. There are primarily two major land classifications in Region 1: the
Alienable and Disposable Land and Forest Lands. However, in order to expand and
differentiate the specificity of land classifications, the data include additional information
(Table 5).
Figure 6. Slope Map of Region 1
Table 1. Slope Categories of the Provinces of Region 1
Slope Category Total Ilocos Norte Ilocos Sur La Union Pangasinan
Level to Nearly
Level
5,224.67 864.51
840.31 476.43 3,043.43
Gently Sloping
to Undulating
850.02 263.84 116.44 91.42 378.33
Undulating to
Rolling
454.54 207.72 59.30 31.62 155.89
Rolling to
Moderately
Steep
810.23 293.64 114.79 93.20 308.60
Steep 2,991.76 513.90 790.50 231.82 1,455.54
Very Steep 2,508.97 1,265.62 659.18 571.71 12.45
Total 12,840.19 3,409.23 2,580.53 1,496.19 5,354.24
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DENR-Environmental Management Bureau - Region I
Based on the Table, Region 1 has a total land area of 1,284,019 hectares. Alienable and
Disposable Lands cover wider area of the total
land area of Region 1. The province of Pangasinan has wider area of Alienable and
Disposable Land compared to the other three (3) provinces of the region. However, Ilocos
Norte covers wider area of Forest Lands in the Region which is 194,986 hectares.
Province Land Area
(km2)
% Distribution Coastline (km) % distribution
Ilocos Norte 3,399.34 26.47 150.18 21.20
Ilocos Sur 2,579.58 20.08 157.63 22.25
La Union 1,493.09 11.62 114.70 16.19
Pangasinan 5,368.82 41.81 285.66 40.33
Total 12,840.19 100 708.17 100
Elevation
Classification
Ilocos
Norte
Ilocos Sur La Union Pangasinan %
distribution
<100m
Above Sea Level
(km2)
1,374.01 1,013.77 718.32 3,904.81 54.60
100-300m ASL (km2) 726.11 448.59 449.57 883.60 19.53
300-500m ASL (km2) 514.66 357.79 177.83 299.02 10.51
500-1000 ASL (km2) 550.69 543.78 130.35 230.83 11.34
>1000 ASL (km2) 233.87 215.65 17.02 49.92 4.02
Total Area 3,399.34 2,579.58 1,493.09 5,368.18 100
Table 2. Distribution of Slope Classification by Provinces (%)
Table 3. Elevation Classification of Region 1
Table 4. Percentage of slope Category of Region 1
Slope Category Ilocos
Norte
Ilocos Sur La Union Pangasinan Total
Level to Nearly Level 16.55% 16.08% 9.12% 58.25% 100
Gently Sloping to
Undulating
31.04% 31.04% 10.75% 44.51% 100
Undulating to Rolling 45.70% 13.05% 6.96% 34.30% 100
Rolling to Moderately
Steep
36.24% 14.17% 11.50% 38.09% 100
Steep 17.18% 26.42% 7.75% 48.65% 100
Very Steep 50.44% 26.27% 22.79% 0.50% 100
Total 26.55% 20.10% 11.65% 41.70% 100
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Ilocos Norte also has wider area with regard to lands that were established for residential
uses. Approximately, 56.86% of the total land area of Ilocos Norte was covered by
residential. Additionally, La Union has a wider area of National Parks compared to the other
three (3) provinces of Region 1. Of the total area of National Parks in Region 1, La union
covers about 84.21% of the whole area of national Parks in the region.
Climate and Weather Disturbances. The Region has two (2) pronounced seasons:
The Hernandez Type of classification under PAGASA defines the climate of the province as
generally arid (TYPE E) wherein there are more dry than wet months. Utmost, there are only 4½
wet months in a year with Q range from 1.00 to 1.67 where Q is the ratio of the number of dry
months to the number of wet months. However, the southernmost portion of the province (part of
the Municipality of Cervantes) was observed to be humid (Type B), where rain is evenly
distributed throughout the year with at most 3 dry months and the eastern part of Sugpon is Dry
(Type D) with rain not sufficiently distributed with at most 6 dry months. Like the rest of
provinces of Ilocos Region, Ilocos Sur has two (2) distinct seasons, the dry season and the wet
season. The dry season normally commences from November to April reaching its peak during
torrid months of April and May. The Wet months are from July to September, with the month of
August as the rainiest period. Normally, the average annual rainfall is 228.82 centimeters. The
average annual maximum temperature is 30.9°C, whereas, the annual minimum temperature is
23.2°C. The average relative humidity is 81%.
Hydrological Features. The Agno River is the main drainage system of the area and has a
catchment area of 5, 952 km2. It is the third largest river in the entire Luzon and the fifth largest
river in the Philippines. The Agno River is the largest river in the Philippines in terms of water
discharge, draining around 6.6 km3 of fresh water into Lingayen Gulf, or almost 70% of the total
fresh water input into the gulf. The headwaters of Agno River are at the slopes of Mount Data in
the Cordillera Mountains at an elevation of 2,090 m, where it drains Cretaceous to Paleocene
igneous basement rocks, and marine siliciclastic and carbonate rocks. Of its total length, about 90
kilometers run through mountainous terrain and canyons.
The Amburayan River basin is also one of the longest rivers which covers about 1,386 square
kilometers in some parts of Ilocos Sur, La Union and Benguet. This river serves as boundary
between La Union and Ilocos Sur which also serves as additional source of income for the
community people of Sudipen.
Laoag River basin covers an area of 1,319 square kilometers which is often prone to
sedimentation. Thus the local government of Laoag constructed a series of earth dikes to mitigate
flooding of the said river. The dike covers 87 kilometers.
Watershed is an extent or an area of land where surface water from rain or melting of snow or ice
converges to a single point at a lower elevation, usually the exit of the basin, where the waters join
another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean. The Region 1
primarily consists of 36 Priority Watersheds (Table 6).
Potential priority watersheds for protection of water quality are those watersheds with both
high manure nutrients applied to the land and environmental indicator scores higher than
other areas of the country. These are the watersheds where government programs are targeted
first to quickly meet the goals of protecting watersheds from possible occurrence of
environmental contamination. Table 6 shows that the province of Pangasinan covers a wider
area of Priority Watershed in Region 1 which is quantifying to 406,193.87 hectares followed
by Ilocos Norte which covers an area of 278,903 hectares of land. The Agno River Basin is
ix REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-Environmental Management Bureau - Region I
primarily the widest area of watersheds in the region which the government prioritizes and
protects against encroachment and contamination from different intervening activities.
There are also watersheds in Region 1 which the government determined as Critical
Watersheds. These watersheds are often called “sensitive/critical” because of their high rate
and massive deforestation brought by certain anthropogenic growth on the area and also even
the various changes of the land uses of the said watershed. As shown in Table 7, the Lower
Agno River Basin in Pangasinan was determined as the highest area with critical watersheds
which covers an area of 260, 445.03 hectares cloaking about 17 barangays.
With its thousands of islands, the Philippines has one of the longest coastlines in the world-
estimated at 36,289 kilometers from north to south with 25 major cities lying on the coast. It
is estimated that more than 60% of the nation’s total population of 99.9 million lives in the
coastal zone. From that 36, 289 kilometers, Region 1 covered 639.67 kilometers or about 1.72
percent of the total coastline in the Philippines. In Region 1, the province of Pangasinan has
the longest stretch of coastline which covers about 285.66 kilometers or about 40.33% of the
total percentage of the region’s coastline. It is followed by the province of Ilocos Norte which
measured about 150.18 kilometers, estimatedly about 21.20% of the coastline of Region 1. La
Union covered about 114.70 kilometers of coastline and Ilocos Sur has about 157.63
kilometers of coastline in the region.
Safe Water Supply. In year 2012, it was estimated that 94.00% of the total number of
households in Region I had access to safe water supply. There were three (3) major levels of
sources of water which were indicated. Level 1 was indicated as artesian wells and springs,
level II units or the communal faucets and level III is indicated as systems or the house-to-
house connections. About 62.87% of the total number of households was using level I type of
water source which comes from wells or springs. Additionally, the least source of safe water
was the level III type. About 27.49% of the total number of households used faucets or house-
to-house connection of water supply in the region.
Mineral Resources. Around 9 million hectares or 30% of the country’s total land area of 30
million hectares are believed to contain important metallic mineral deposits, while 5 million
hectares are also known to be potential sites for non-metallic mineral reserves.The country’s
offshore areas, which cover around 2.2 million square kilometers, also contain placer
minerals, including gold, magnetite and chromite-bearing sands, aggregate resources like sand
and gravel, decorative stones, and polymetallic sulfide deposits.
Table 5. Land Classifications of Provinces in Region 1 (Hectares) Province Land Classification
Total
Land Area
(ha)
Certified
A&D
Lands
(ha)
Forestland(
ha)
Unclassified
Forestlands
(ha)
Classified
forestlands
(ha)
Established
for
Residential
(ha)
Established
Timberland
(ha)
National
Parks
(ha)
Military
and
Naval
Reserves
(ha)
Civil
Reserve
(ha)
Fishpond
(ha)
Ilocos
Norte
339,934 144,948 194,986 - 194,986 193,272 1,374 340 - -
Ilocos Sur 257,958 138,412 119,546 26,176 93,370 1,609 90,141 1,620 - -
La Union 149,309 120,307 29,002 4,132 24,870 90 13,833 10,947 - - Pangasinan 536,818 406,395 130,423 2,847 127,576 22,875 102,792 92 288 923 606
Total 1,284,019 810,062 473,957 33,155 440,802 217,846 208,140 12,999 288 923 606
x REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-Environmental Management Bureau - Region I
Pangasinan 406,193.87
Urdaneta and Dagupan City 323,167.31
Lower Agno River Basin 260,445.03 Labrador, Lingayen, Binmaley, Aguilar,
Mangatarem, Urbiztondo, Calasiao, Sta. Barbara,
Umingan, San Nicolas, Tayug, Bugallon
Toboy-Tacnien
Watreshed
45,801.62 Sison, San Manuel, Binalonan, Urdaneta, Sta.
Barbara, Calasiao, Laoac
Bued Watershed 16,920.66 Pugo, Rosario, Sto.Tomas, Sison, Pozzorubio, San
Jacinto, San Fabian
Alaminos City 83,026.56
Alaminos
Balincaguin
Nayom
20,145.06
39,995.36
22,886.14
Sual, Mabini, Alaminos City
Mabini, Agno, Burgos, Dasol, Infanta, Sual, Labrador
Infanta, Sta. Cruz, Zambales
Table 6. Priority Watersheds in Region 1.
Name of River Watershed/Sub-
watershed
Area
Covered
(ha)
Location
Ilocos Norte 278,903
Bangui 103,268.60
Bolo River Watershed
Banban-Baruyen River
Pasuquin River
Vintar River
21,410.36
13,834.94
4,267.96
63,755.34
Adams, Dumalneg, Bangui, Pagudpud
Burgos, Pasuquin, Bangui
Pasuquin, Burgos, Vintar
Adams, Bangui, Vintar, Pasuquin, Dumalneg, Carasi
Laoag City 175,634.89
Laoag River Basin
Quiaoit River
Badoc River
138,559.34
18,004.33
19,070.63
San Nicolas, Sarrat, Piddig, Solsona, Banna, Dingras,
Marcos
Batac, Paoay, Sarrat
Nueva Era, Pinili, Badoc
Ilocos Sur 130,645.16
Vigan City 42,839.87
Cabugao River
Narvacan River
Sta. Maria
8,433.35
14,987.31
19,419.21
Cabugao, Sinait
Nagbukel, Narvacan
Burgos, Lidlidda, Sta. Maria, San Emilio
Tagudin 87,805.29
Candon River
Buaya River
Amburayan River
11,999.23
24,638.06
51,168.00
Candon, Banayoyo, Galimuyod, San Emilio, Santiago
Sta. Cruz, Lucia, Sigay, Salcedo, Suyo, Alilem, Sugpon,
Tagudin
La Union 90,435.60
San Fernando City 90,435.60
Baroro River
Naguilian River
Aringay River
Amburayan River
19,063.07
28,890.61
22,559.74
19,922.18
Bacnotan, San Gabriel, Santol, Bagulin, San Juan
Naguilian, Bauang, Burgos, Bagulin, San Fernando City
Aringay, Tubao, Pugo,Sto. Tomas, Caba, naguilian
Sudipen, Santol, San Gabriel, Bangar
xi REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-Environmental Management Bureau - Region I
Table 7. Critical Watersheds in Region 1
Name of Watershed Area (hectares) Location
Ilocos Norte
Vintar River Watershed Rehabilitation Project 1,000.00 Brgy. Visayas & Dipilat, Vintar
Dingras Watershed Rehabilitation Project 20,832.80 Brgy. Francisco and San Marcelino,
Dingras
Marcos-Nueva Era Watershed Rehab. Project 23,019.90 Brgy. Poblacion, Nueva Era
Ilocos Sur
Libunao Spring Watershed Rehab. Project 162.00 Brgy. Maradodon,Cabugao
Nagbukel Watershed Rehab. Project 363.11 Brgy. Taleb & Lapting, Nagbukel
Suyo-Proper Watershed Rehab. Project 590.00 Suyo & Alilem
Lidlidda Watershed Forest Reserve Rehab.
Project
1,288.00 Banayoyo & Lidlidda
La Union
Lono-oy Integrated Watershed Devt. Project 1,460.00 Brgy. Lono-oy,Balbalyang, Bayabas &
Sabsaba, san Gabriel & Santol
Naguilian Watershed Rehab. And Erosion
Control Project
290.00 Casilagan, Naguilian
Pangasinan
Dipalo Watershed Rehab. Project 7,519.56 San Macario Sur, Cabangaran,
Nangapugan, San Quintin & Natividad
Banila Watershed Rehab. Project 26,188.40 Maseil-seil, Umingan
San Roque Multi Purpose Dam Watershed
Mngt. Project
5,000.00 San Roque, San Felipe West, San Manuel,
& San Nicolas
Baracbac River Watershed Project 6,442.60 Malabobo, Mangatarem
Cagubay Watershed Rehab. Project 3,375.30 Brgy. Ninoy & Laoag Aguilar
Viray Watershed Rehab. Project 7,511.70 Bachelor East, Natividad
Amacalan Watershed Rehab. Project 4,805.00 Villacorta, Mabini
Mabini Watershed Rehab. Project 95.00 Villacorta, Mabini
Table 8. Length of Coastline in Region 1
Provinces Length of Coastline (km) % of Distribution
Ilocos Norte 150.18 21.20
Ilocos Sur 157.63 22.25
La union 114.70 16.19
Pangasinan 285.82 40.33
Total Coastline 708.17 100
xii REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-Environmental Management Bureau - Region I
Among our important metallic minerals found in abundance in various parts of the country
include gold, copper, iron, chromite, nickel, cobalt and platinum, while our non-metallic
resources include sand and gravel, limestone, marble, clay, and other quarry materials.
Region 1 is endowed with varied mineral resources both metallic and non-metallic. The total
volume of mineral reserves stood at around 1.37 billion metric tonnes (MT) in 1992. (See
Table 9 and Figure 6).
Non metallic mineral reserves comprised about 99 percent of the total mineral reserves.
Copper ore ranked the biggest deposit with about 54.6 percent of the total metallic reserves.
This kind of mineral is highly abundant in the province of Ilocos Norte and Pangasinan. Iron
magnetite sand, which ranked second with about 31 percent, can be found only in Ilocos Sur
and La Union.
Forest Resources. Of the country’s total land area of 30 million hectares, around 53 percent
of it is classified as forestland, with slopes ranging from 18 percent and above. But not all is
covered with forest. Based on the 2001-2003 satellite imageries, the country’s total forest
cover is estimated at 7.168 million hectares or 24.27% of the total land area. The remaining 8
million hectares are unproductive, open, denuded or degraded. Forests are efficient
watersheds which could regulate the flow of water supply, prevent flash floods and control
soil erosion and water pollution. These are the sources of wood and other forest products of
great economic value, power and water.
In Region 1, the current condition of forests is adversely critical because majority of its
resources were almost depleted. There were 2 major categories of Forestland in the region:
classified and unclassified forest lands. The classified forestland consists of established forest
reserves, established timberlands, national parks, military and civil reservations and
developed fishponds.
In 2012, the classified forestland covered an area of 440,802 hectares of the total forestland area.
About 93 percent of the total forestland is considered classified forestland area. From these
classified forestland areas, province of Ilocos Norte has the widest area which covered 194,986
hectares of land or about 44.23 percent of the total classified forestland area in the region. It is
followed by Pangasinan which is about 127,576 hectares or 28.94 percent of the total classified
forestland area of Region 1. The remaining 7 percent of the total forest land is constituted as
unclassified forestland. The province of Ilocos Sur has the widest unclassified forestland which
covers about 26,176 hectares or about 78.95 percent of the total unclassified forestlands in Region
1.
xiii REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-Environmental Management Bureau - Region I
Land Transportation
Regional Road Network. The region has a fairly developed national road network which
provides a good level of accessibility within and outside the region. As of 2008, Region 1 had
a total national road network length of 1,609.60 kilometers. Pangasinan got the biggest
portion which is 38.75% while La Union got only 14.82% of the total road improvement in
the region (Table 10).
The Trunkline Road System. The region can be accessed from Manila through the Manila
North Road (MNR), the major trunkline road system via the key urban areas of Tarlac City in
Region III and City of Urdaneta Pangasinan. The Patapat viaduct in the north linked Region I
and Region II which enhanced socio-economic development and exchanges.
Table 9. Mineral Reserves of Region 1
Province Location Resources
Probable Positive
Ilocos Norte
Mineral Deposits
Metallic
Copper Ore Cacafean, Marcos 7,000,000.00
Iron Lump Ore Lamin, Piddig 850,000.00
Iron Magnetite Nueva Era, Panay 102,600.00
Gold Sta. Ana, Solsona 1,066.34
Non-Metallic
Cement Raw Materials 350,000,000.00
Limestone Burgos-Pasuquin 472,500.00
Shale Burgos-Pasuqiun 25,000,000.00 1,715,000.00
Silicon Burgos-Pasuquin 10,319,910.98
Feldspar Pasleng, Pagudpud 18,194.64 14,000.00
Feldspar (SSM) Burgos,Pasuquin 749,811.00 339.775.09
Silica Vintar 25,720.00
Pebbles Bangui 297.00
Gravel and Sand Badoc 2,309,082.00
Pangasinan
Mineral Deposits 2,901,212,803.96 826,736,464.93
Metallic 456,149.00
Copper Ore Mabini 318,930.00
Chromite Mangatarem 135,219.00
Manganese Mangatarem 2,000.00
xiv REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-Environmental Management Bureau - Region I
…..continuation of Table 9
Province Location Resources
Probable Positive
Non-Metallic 2,900,756,654.96
Asbestos Aguilar 1,446,600.00
Cement Raw Materials
Limestone Sison 602,024,638.00
Shale Sison 18,770,260.00
Silica Agno 2,848,856.93
Gabbro (cu.m) Mangatarem 101,670,000.00
Zeolite Mangatarem 13,765,939.00
Bentonite Mangatarem 10,163,891.00
White Clay (SSM) Umingan 35,672.00
Limestone for agricultural use Mabini 4,378,556.00
Guano/rock Phosphate (SSM) Sual 54,250.00
Sand and Gravel Bued River, Sison 5,153,844.45
La Union
Mineral Deposits
Metallic 2,248.00
Iron magnetite Sand Lingayen Gulf, Damortis 20,314,000.00
Placer Gold Bued River, Saytan,
Rosario
816,222.00
Pebbles 6,359,818.18
Cement Raw Materials Quirino, Bancotan 91,405,762.00
Limestone
Shale Quirino, Bacnotan
Gravel and Sand Naguilian River
xv REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-Environmental Management Bureau - Region I
Transportation Sub-Sector
Other major inter-regional road links comprising the backbone network of the region include
Bauang-Baguio Road, Rosales-Umingan-Lupao Road and the other major alternate roads
linking Region 1 and the Cordillera Administrative Region are the Tagudin-Cervantes-
Mankayan Road and the Cervantes-Sabangan Road. The Rosales-Sta. Fe Road, meanwhile, is
the other major road that linked Region 1 and Region II. Generally, the road system in Region
1 is improving and as of 2007, 21.17% of the total road length is in good condition, 34% are
in fair and the rest are in bad or poor condition.
Vehicle Registration and Availability. As of 2014, the Land Transportation Office Region 1
Registered around 431, 152 vehicles. This vehicles were cars, utility vehicles, sports utility
vehicles, trucks, buses and motors/tricycles. Based on Table 11, the percentage of registered
motors/vehicles is topped by tricycles which averaged at 76.43% followed by UV/SUVs at
12.57% and cars at 5.10%. The province of La Union has the highest registered
motors/vehicles which reached up to 88,442, followed by the province of Pangasinan with
48,453 registered vehicles. Not far behind, Ilocos Norte listed out 20,107 registered vehicles.
Gasoline was the more efficient fuel used by most of the registered vehicles in the region,
rather than diesel.
Rail Transport. The rail transport system in the region stopped its operation way back 1983
due to decreasing patronage and deteriorating railways and facilities. One of the causes of the
deterioration was the massive increase of squatters in the area where the rail was constructed.
Air Transport. Of the five (5) existing airports in the region, only two (2) airports are in
operation. These are the Laoag International Airport (LIA) and San Fernando Airport in Poro
Point, San Fernando City La Union. The LIA currently caters commercial activities including
local and international flights flying via Manila-Laoag-Hongkong route and vice versa. The
SFA, on the other hand, accommodates only general, military, government and private flights
since commercial flights have not been sustained due to very low demand.
Sea Transport. The region boasts of several commercial, fishing and municipal ports. The
region’s busiest commercial port is located in San Fernando City, La Union. The San
Fernando City port can accommodate local and international vessels, utilized mainly as
shipment area for cargoes and products coming in and out of Region 1 and CAR. Based on
the statistical data of Philippine Ports Authority, Northern Luzon including PMO San
Fernando Port ship calls were around 20,828 for the year 2012.While there were 75,058,855
MT of cargoes considering domestic and foreign cargoes.
Communications Sub-Sector
Postal Communication. A total of two hundred and eighty six (286) post offices/postal
stations/mailing centers were operated and maintained in Region 1. Fifty one (51) are found
in Ilocos Norte, fifty five (55) in Ilocos Sur, sixty five (65) in La Union and one hundred and
fifteen (115) were found in the province of Pangasinan.
Power and Energy Sub-Sector. The region’s power supply comes from the Luzon Grid. The
region has five (5) existing power plants constructed during the period of 2003 with a total
installed energy generating capacity of 1,485 MW: 215 MW 1590 Energy Corporation in
Bauang, La Union; 1,200 MW Team Sual Corporation in Sual, Pangasinan; 70 MW Luzon
Hydro Corporation in Alilem, Ilocos Sur; 345 MW San Roque Power Plant in San Manuel,
Pangasinan; and Luzon Wind Power Project in Bangui, Ilocos Norte. To date, Region 1 has
fifty two (52) power substations. 12 are owned by the National Power Corporation, thirty six
xvi REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-Environmental Management Bureau - Region I
(36) are owned by various rural electric cooperatives and the other four (4) are owned by
private electric companies, two (2) were owned by cement industries. All the cities and
municipalities in the region already have electric power supply. Except for the province of
Ilocos Sur which is
almost 99% energized, all the barangays in other provinces posted 100% energy consumption.
Flood Control/Drainage and Shore Protection. By the end of 2001, 1,880.60 lineal meters
of flood control structures were constructed/repaired, improved and maintained in Region 1.
Table 10. Road Networks in Region 1
Region 1 Ilocos Norte Ilocos Sur La Union Pangasinan
1609.90 383.4 363.90 238.60 623.7
100.00% 23.82% 22.61% 14.82% 38.75%
Table 11. Number of Motor Vehicles Registered in Region 1 (CY 2014)
Motor /Vehicle Type
Type of Fuel
No. of Units total percentage
Ilocos Norte
Ilocos Sur La Union Pangasinan
Cars Gasoline 1,460 0 3,468 3,080 8,008 5.10
Diesel 2 0 74 215 291 0.19
UV/SUV Gasoline 1,107 0 1,650 2,403 5,160 3.28
Diesel 3,355 0 7,655 8,748 19,750 12.57
Trucks Gasoline 0 0 0 0 0 0
Diesel 79 0 173 19 271 0.18
Buses Gasoline 0 0 0 0 0 0
Diesel 677 0 1,055 1,780 3,512 2.00
Motors/Tricycle Gasoline 13,427 0 74,367 32,211 120,005 76.43
Diesel 0 0 0 0 0 0
Grand Total 156,997 100.00
xvii REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-Environmental Management Bureau - Region I
Environment and Management
Coastal and Marine Regional Resource Profile. The region has a total land area of
12,840.19 square kilometers with a total coastline of 708.17 kilometers. Region 1 also has a
total coastline zone area of 10,234.72 square kilometers. There are 21 areas considered as
wetlands covering 3,320.55 hectares. Fishing grounds and resources include: 45,790.50
hectares of sheltered coastal areas; 1,421.75 hectares fishpond areas; 46.38 hectares
freshwater fish pen areas; 57.66 hectares freshwater fish cage areas; and 4,111.36 hectares of
communal areas. Brackish fishpond area totals up to 13,084.25 hectares while mangrove area
totals up to 774.38 hectares.
Province of Ilocos Norte.
The province of Ilocos Norte has coastline length of 150.18 kilometers.
Coral reefs of Ilocos Norte are primarily located in the municipality of Badoc, Currimao,
Pasuquin, Burgos and Pagudpod, measuring a total area of 604.64 hectares.
Mangrove forest including seaweeds and seagrass are located in the municpality of Pasuquin,
Burgos, Currimao and Pagudpod wich measures an area of 179.08 hectares.
Also, Municipality of Pagudpod, Currimao, Badoc, Pasuquin and Paoay lake were considered
as major tourist spots with prime beaches and sand dunes.
International and local port and effective cargo shipping is located primarily at Currimao Port
area.
Laoag City is an urban area within coastal area. The Laoag River Basin drains into the
coastal area with 10 organized MFARMCs and eductional and research institutes.
It has approved Provincial CRM Framework Plan and enacted Municipal Fishery Ordinances
(MFOs).
Province of Ilocos Sur.
Province of Ilocos Sur has the second longest coastline in Region 1 which is estimatedly
about 157.53 hectares of area and also, Ilocos Sur has the longest and widest municipal water.
•With a vast area that can be devoted to mariculture (300 hectares presently available).
•Presence of 102.91 hectares of mangrove forest which is primarily located at the municipalities of
Caoayan, Candon, Sinait, Cabugao, San Juan, San Vicente, Vigan, Sta. Maria, San Esteban,
Candon, Sta. Lucia and Sta. Catalina
•Consists of 181 hectares of Coral reefs primarily located at the municipalities of Salomague,
Sulvec Cove, Cabugao Island, Magsingal, Sinait and Caoayan.
•Presence of developed beach resort areas with tourism-related facilities.
•With one (1) port, Salumague Port
•Vigan City and Candon City as urban areas in coastal areas.
xviii REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-Environmental Management Bureau - Region I
•Presence of educational and research institutions focusing on coastal development, Banaoang
River as major river tributary that drains into the coastal waters
•Approved Framework Plan on Provincial CRM.
Province of La Union.
•Coastline stretches to pproximately 114.70 kilometers, mostly within the declared
environmentally critical area of Lingayen Gulf.
•Vast fishery grounds and resources with the presence of Brackish water fishpond.
•With existing coral reefs in Darigayos, San Fernando City, Balaoan and Bacnotan
•Existing and potential Mangrove Forest located at Aringay, Bauang, Balaoan, Luna and San
Fernando City.
•Presence of seagrass and seaweeds at Agoo-Damortis National Park and Seascape
•Presence of long stretch of beautiful beach resorts and availability of tourism-related
facilities such as hotels and restaurants.
•Poro Point Economic Free Port Zone, Bacnotan Cement Plant (HOLCIM), Coca-cola Plant,
Fertilizer Plant, Bauang Private Power Plant (1590 Energy Co.), Pilipinas Shell and Chicken
Dressing Plant.
•Organized 100 percent of all FARMCs and fishfolk organization/association of City of San
Fernando, an urban area in coastal area
•Initial preparation of the CCDPs and approved Provincial CRM Framework Plan
•Bauang-Naguilian and Aringay Rivers as major tributaries that drain into the coastal waters
Province of Pangasinan.
The province of Pangasinan has the longest coastline in Region 1 with estimated 285.66
kilometers or 41.81% of the Total coastline in the region.
•Pangasinan also has vast fishing grounds and its resources include the Muncipality of Anda,
Alaminos, Bolinao and Bani with the presence of Hundred Island Marine National Park, with
the presence of prime and beautiful beaches and highly facilitated resorts and hotels including
exotic restaurants and food houses.
•Organized community associations and cooperatives, presence of education researches on
vast aquaculture areas.
•Presence of seagrass beds in Bolinao, Anda, Alaminos, Bani, Dasol, Infanta, Burgos and
Sual of around 50 square kilometers.
•Presence of Mangrove Forest whith estimated 453.39 hectares found in Bani, Anda, Bolinao,
Alaminos, Dasol, Sual, Labrador, Lingayen and Binmaley
•Established marine protected areas and fish sanctuaries in research fishery institutions.
xix REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-Environmental Management Bureau - Region I
•Most coastal municipalities within the environmentally critical areas of Lingayen Gulf, 2
cities (Dagupan and Alaminos) as urban areas in the coastal areas
•Presence of Sual Coal Fired Power Plant
Land Use
Production Land Use. The biggest sector to produce quality products is determined
in agriculture. About 1,026,148 hectares is being covered by the said sector which is
around 79.92 % of the total land area of the region.
Region 1 is the leader in the production of several agricultural crops. Region 1 has
been ranked first in producing quality mango, peanut, garlic, onion, mungbean and
milkfish. The province of Pangasinan was the highest producer of mango with a
production area of 6, 580 hectares. Ilocos Norte produced bulk of garlic with a
production area 9, 797 hectares as well as onions with estimated 11, 446 hectares
devoted to said crop. Province of Ilocos Sur had the biggest production area of
tobacco with estimated 13,515 hectares of potential irrigable area, accounting for
about one-fourth of the total area in the region. Some 152, 874 hectares were serviced
by various irrigation. Of the total 318, 892 hectares potential irrigable area, only 45.66
percent was irrigated, or a total of 145,604 hectares. The biggest irrigation system in
the region is located in San Manuel (San Roque). Productivity in the province in
general was constrained by poor irrigation system. Siltation and sedimentation in most
river systems adversely affected the supply of irrigation waters. Agno River, one of
the biggest watersheds in the region, is heavily silted and prone to flood. The
impending El Nino could directly affect the watershed which could eventually affect
also the irrigation system of the region. It could be noted in Table 13 that in Ilocos
Norte, only 63.41% of the total potential area is developed. Less than half (45.66%) of
the
potential irrigable area is only developed in the region (NEDA Region 1-PSEP, 2012).
DEMOGRAPHIC PROFILE
Demography is the statistical study of human populations. It can be a very general
science that can be applied to any kind of dynamic living population, one that changes
over time or space. It encompasses the study of the size, structure, and distribution of
these populations, and spatial and/or temporal changes in them in response to birth,
migration, aging and death.
Population Profile. A census is the other common direct method of collecting
demographic data. A census is usually conducted by a national government and
attempts to enumerate every person in a country. However, in contrast to vital
statistics data, which are typically collected continuously and summarized on an
annual basis, censuses typically occur only every 10 years or so, and thus are not
usually the best source of data on births and deaths. Analyses are conducted after a
census to estimate how much over or undercounting took place. These compare the
sex ratios from the census data to those estimated from natural values and mortality
data.
xx REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-Environmental Management Bureau - Region I
Censuses do more than just count people. They typically collect information about
families or households in addition to individual characteristics such as age, sex,
marital status, literacy/education, employment status, and occupation, and graphical
location. They may also collect data on migration (or place of birth or of previous
residence), language, religion, nationality (or ethnicity or race), and citizenship.
Population Level. The population level of Region 1 posted an increase of 6.10%
from the year 2000 with a total population of 4,200,478 to 4,748,372 in 2010 (Table
15). Province of Pangasinan showed the highest percentage increase of 15.8%
followed by the province of La Union which increased by about 14.4 % of population
growth. However, almost half of the population of Region 1 is seen in the province of
Pangasinan. Ilocos Norte showed the lowest increase of population growth which is
just 10.3%. Additionally, province of Ilocos Sur has 11.7% increase over the span of
ten (10) years.
Population Growth Rates. The annual population growth rate in 2010 showed a
declining trend from 2.15% to 1.23%. This may mean a decrease in crude birth rates
for the past ten (10) years which probably attributed to improved family planning and
higher literacy rate. In Region 1, the functional rate in 2008 was 91.3% (NSCB,NSO).
Population Density. Ilocos Region covers around12,840.19 square kilometers of land
area. With its total population of 4,748,372 in 2010, there were 354 persons
occupying per square kilometers of land. This means that there were six (6) persons
more than what is known in the year 2007.
Based on the report gathered from the National Economic Development Authority
(NEDA) Region 1, the population density of the province of Pangasinan was 493
person per square kilometers in 2010 which was the highest population density among
the four provinces, followed by the province of La Union. However, the province of
Ilocos Norte has the lowest population density in the Region.
Table 12. Land Use of Region 1
Land Use Region 1 Ilocos Norte Ilocos Sur La Union Pangasinan Percent Distribution
A. Agricultural Lands 1,026,148 223,535 205,021 125,026 472,566 79.92
Seasonal Cropland 374,820 69,277 50,350 33,344 221,849 29.19
Annual/Perrineal Cropland
30,027 1,912 3,101 2,119 22,895 2.34
Pasturelands Managed pasture
14,557 2,877 9,751 1,929 1.13
Grassland/shrubland 589,403 149,170 141,369 88,485 210,379 45.90
Fishery Areas Fishpond
14,215 50 450 1,078 12,637 1.11
Swampy areas 2,877 2,877 .22
lake 249 249 .02
B. Forest Areas 174,012 98,797 30,194 12,669 32,352 13.55
C. Built-up Areas 50,267 6,628 10,221 9,146 24,272 3.91
D. Miscellaneous Land
33,592 10,974 12,522 2,468 7,628 2.62
Total Area 1,284,019 339,934 257,958 149,309 536,818 100
xxi REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-Environmental Management Bureau - Region I
Economic Performance of the Region. Based on the quarterly report of the National
Economic and Development Authority (NEDA) Regional Office 1, the highest economic
producers were in the sector of Agriculture. Crops produced were almost 3,209.0000 metric
tons in the whole Region 1. The biggest producer of crop is the province of Pangasinan.
These crops include rice, corn and rooted variety. Moreover, the livestock sector increased in
production at 129.9 metric tonnes (liveweight) for the year 2014 from 132.0 metric tonnes
(liveweight) in 2013. From the sector of fishery, production was increased from 155.7 000
metric tonnes in the year 2013 to 174.2 metric tonnes in the year 2014.
Labor. In 2014 the rate of labor force in Region 1 was higher at 61.7 % compared to 61.3%
in 2013 while the rate of employment in 2014 was 91.6% compared to the employment rate of
the previous year which was 91.7% reflecting a slight decrease of 0.9%. The Unemployment
rate of 2014 slightly increased to 8.4% compared to the unemployment rate in 2013 which
was 8.3%. However, underemployment rate slightly improved from the previous rate of
20.0% to 16.0% in 2014.
The huge inflows were generated through
Business Name Registration (BNR) and SEC registration.
Province Total Population Projected Population % increase
Growth Rate 2000-
2010 2000 2010 2013 2016
Region 1 4,200,478 4,748,372 4,924,061 5,128,241 6.1 1.23
Ilocos Norte 461,661 568,017 590,737 607,778 10.3 1.00
Ilocos Sur 519,966 658,587 737,617 803,461 11.7 1.03
La Union 548,742 741,906 801,258 845,772 14.7 1.21
Pangasinan 2,020,273 2,779,862 2,918,855 3,030,049 15.8 1.34
Provinces Potential Irrigable Area
(hectares)
Existing Service Areas (Hectares) Percentage Irrigation
Development NIS CIS Private/Pumps
Region 1 318,892 60,254.00 43,427.00 41,923.00 45.66
Ilocos Norte 57,134 14,167.00 8,651.00 13,408.00 63.41
Ilocos Sur 45,497 3,681.00 8,775.00 4,885.00 38.11
La Union 35,000 4,837.00 5,448.00 2,528.00 36.61
Pangasinan 181,261 37,569.00 43,427.00 21,102.00 56.33
Table 13. Area Irrigated and Irrigation Coverage of Region 1
Table 14. Population and Annual Growth Rates in Region 1
xxii REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-Environmental Management Bureau - Region I
Trade exists for man due to specialization and division of labor, in which most people
concentrate on a small aspect of production, and trading for other products. Trade exists
between regions because different regions have a comparative advantage in the production of
some tradable commodity or because different sizes of regions allow the benefits of mass
production. As such, trade at market prices between locations benefits both locations. Trade
and industry in Region 1 seems to be increasing. Based on the Department of Trade and
Industry information in 2012, there were about 5, 758.10 million pesos of invesment
generated in the region which estimated about 1.45% of the total investment of the country.
However, the export services of goods and commodity of the region decreased from 37.17
million dollars in 2011 to 32.20 million dollars in 2012. This was probably caused by low
production and internal agreements between other countries. Based on the report of DTI, the
total export of Region 1 was just 0.08% of the total export of the country. In the year 2012,
the Province of La Union has the highest export in the region, amounting to 18.44 million
dollars which is about 57.27% of the total export in the region, followed by the province of
Ilocos Norte which was about 30.96% of the total export of the region.
Mineral Production. There was a decline in almost all mineral production in the last quarter
of 2008. Though sand and gravel went up by 16.05%, other calcareous sandstone posted
higher production by 157%, bentonite (higher by 86%) and zeolite (increased by 14%). The
last quarter of 2008 was relatively better than the last quarter of 2007 as most of the minerals
posted higher outputs except for feldspar (decreased by 78.60%), sand and gravel (lower by
9.28%) and calcareous sandstone (decreased by 8.28%).
The decline in production of some minerals was due to the continued low demand and limited
orders from customers while the increase in production for the other minerals was due to high
volume of production, high demand for specific mineral and more operating days.
Tourism. The tourism industry in Region 1 steadily improved in 2013. Tourist arrival was
estimated at 755,716.00 individuals. From 627,725.00 in 2012, it was incresed by 127,991.00
tourists. The Province of Ilocos Norte has the highest tourist arrival with 254,201 followed by
the province of Pangasinan and the province of Ilocos Sur with 142,614 tourists. However,
the province of La Union has the lowest arrival of tourists with estimated 110,246 tourists.
Table 15. Population Density of Region 1
Among the famous landmarks are Cape Bojedor Lighthouse, Marcos Museum, Paoay Church,
Paoay Sand Dune and Paoay Lake, Patapat Viaduct and Bangui Wind Mill in Ilocos Norte.
•Bessang Pass, ancestral Houses, Sta. Maria Church, Tirad Pass, Pagburnayan and Plaza
Burgos, Heritage Houses in Vigan and Baluarte in Ilocos Sur.
Provinces 2000 2007 2010
Region 1 327.00 348.40 354.00
Ilocos Norte 151.00 130.70 161.00
Ilocos Sur 230.00 243.50 245.00
La Union 441.00 434.50 483.00
Pangasinan 453.00 430.60 493.00
xxiii REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-Environmental Management Bureau - Region I
•Botanical Garden, Museo Iloco, Agoo Basilica, Pindangan Ruins, Macho Temple, and
different beaches in La Union.
•Hundred Islands, Manaoag Church, San Roque Multi-purpose Dam, Lingayen Gulf, War
Memorial Park and Bangus Fish Pens in the Province of Pangasinan.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 1
ENVIRONMENTAL MANAGEMENT SECTOR
Environmental Management represents the wise use of activity and resources to have an impact on the
world. It does not involve managing the environment itself, but it is the process of taking steps and
behaviors to have a positive result on the environment. Many organizations build up a management
plan or system to implement, manage and maintain environmental goals. Management plans for the
environment are constructed by many companies and organizations, as taking care of the planet is the
responsibility of everybody in every type of profession.
Thus, being an environmental advocate, the Environmental Management Bureau Region I has taken
the initiative to study and determine the status of air and water quality. Likewise, efforts are exerted
for the management of toxic chemicals and hazardous waste as well as the solid waste in the Region.
Other activities undertaken are assessment of environmental impacts brought by different firms and
enforcement of Environmental Laws.
AIR QUALITY MANAGEMENT
Differential Optical Absorption Spectroscopy (DOAS)
Urdaneta City, Pangasinan
The Differential Optical Absorption Spectroscopy (DOAS) is installed at Brgy. Anonas, Urdaneta
City in the province of Pangasinan with geo-coordinates of 15°59’54” N, 120°34’15” E. It measures
nine (9) hazardous criteria pollutants namely: Carbon Monoxide (CO), Photochemical Oxidants as
Ozone (O3), Sulfur Dioxide (SO2), Nitrogen Dioxide (NO2), Particulate Matter 10 and Particulate
Matter 2.5, Benzene, Toluene, and Xylene. The hazardous criteria pollutants have different
characteristics and health impacts.
Carbon Monoxide (CO)
Carbon monoxide is a toxic gas, but, being colorless, odorless, tasteless, and initially non-irritating, it
is very difficult for people to detect. Carbon monoxide is a product of incomplete combustion of
organic matter due to insufficient oxygen supply to enable complete oxidation to carbon
dioxide (CO2). It is often produced in domestic or industrial settings by motor vehicles that run
on gasoline, diesel, methane, or other carbon-based fuels and from tools, gas heaters, and cooking
equipment that are powered by carbon-based fuels such as propane, butane, and charcoal. Carbon
monoxide levels typically are highest during cold weather, because cold temperatures make
combustion less complete and cause inversions that trap pollutants close to the ground.
Photochemical oxidants as Ozone (O3)
Ground level or "bad" ozone is not emitted directly into the air but is created by chemical reactions
between oxides of nitrogen (NOx) and volatile organic compounds (VOC) in the presence of sunlight.
Emissions from industrial facilities and electric utilities, motor vehicle exhaust, gasoline vapors, and
chemical solvents are some of the major sources of NOx and VOC. Breathing ozone can trigger a
variety of health problems, particularly for children, the elderly, and people of all ages who have lung
diseases such as asthma. Ground level ozone can also have harmful effects on sensitive vegetation and
ecosystems.
Sulfur Dioxide (SO2)
Sulfur dioxide (SO2), at standard atmosphere, is a toxic gas with a pungent, irritating, and rotten
smell. Sulfur dioxide is a major air pollutant and has significant impacts on human health. In addition,
the concentration of sulfur dioxide in the atmosphere can influence the habitat suitability for plant
communities, as well as animal life.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 2
Nitrogen Dioxide (NO2)
NO2 is a reddish-brown gas with a pungent and irritating odor. It transforms into the air to form
gaseous nitric acid and toxic organic nitrates. NO2 also plays a major role in atmospheric reactions
that produce ground-level ozone, a major component of smog. It is also a precursor to nitrates, which
contribute to increased respirable particle levels in the atmosphere
Benzene
Benzene is a colorless liquid with a sweet odor. It evaporates into the air very quickly and dissolves
slightly in water. Outdoor air contains low levels of benzene from tobacco smoke, automobile service
stations, exhaust from motor vehicles, and industrial emissions. Vapors (or gases) from products that
contain benzene, such as glues, paints, furniture wax, and detergents, can also be a source of
exposure. Air around hazardous waste sites or gas stations will contain higher levels of benzene.
Working in industries that make or use benzene.
Toluene
Toluene is added to gasoline, used to produce benzene, and used as a solvent. Exposure to toluene
may occur from breathing ambient or indoor air affected by such sources. The central nervous system
(CNS) is the primary target organ for toluene toxicity in both humans and animals for acute (short-
term) and chronic (long-term) exposures. CNS dysfunction and narcosis have been frequently
observed in humans acutely exposed to elevated airborne levels of toluene; symptoms include fatigue,
sleepiness, headaches, and nausea.
Xylene
Xylene is a powerful chemical compound that is found in many household and industrial items. This
chemical is colorless but has a very distinctive odor. Products that contain xylene include paints,
varnishes, fingernail polish, adhesives, rubber cement and gasoline. Exposure to xylene in any fashion
whether it be inhaled, ingested, skin contact or eye contact can cause some harmful health effects.
Particulate Matter 10 and Particulate Matter 2.5
Particulate matter (PM) refers to small solid or liquid particles floating in the air. These particles can
be made up of different substances, including carbon, sulfur, nitrogen and metal compounds.
PM10 includes fine particles as well as coarse particles that ranges in sizes from 2.5 to 10 micrometers
in diameter. The coarse particles tend to stay in the upper parts of our respiratory tract, such as the
nose and throat.
Fine particles which have diameters less than 2.5 micrometers (PM2.5) are linked to more serious
health effects than larger particles. PM2.5 is about one-eighth the diameter of a human hair. Human
sources include motor vehicle use, combustion products from space heating, industrial processes,
power generation. Natural sources include soil, bacteria, and viruses, fungi, molds and yeast, pollen
and salt particles from evaporating sea water.
Amongst the nine (9) criteria pollutants, six (6) have National Ambient Air Quality Guideline Values
(NAAQGV) and standards pursuant to Section 12 of RA 8749 and Section 1(a) Rule VII of the IRR
of RA8749 otherwise known as the Philippine Clean Air Act of 1999.The aim is to protect public
health and safety and general welfare. Table 1 is the National Ambient Air Quality Guideline for
criteria of pollutants.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 3
Table 1. National Ambient Air Quality Guideline Values for Criteria Pollutants
Health Effects to People Exposed to Criteria Air Pollutants
Carbon monoxide (CO) enters the bloodstream through the lungs and binds to hemoglobin, the
substance in blood that carries oxygen to cells. It reduces the amount of oxygen reaching the body’s
organs and tissues.
Ozone (O3) affects the lungs and respiratory system in many ways. It can:
Irritate the respiratory system, causing coughing, throat soreness, airway irritation, chest
tightness, or chest pain when taking a deep breath.
Reduce lung function, making it more difficult to breathe as deeply and vigorously as you
normally would, especially when exercising. Breathing may start to feel uncomfortable, and
you may notice that you are taking more rapid and shallow breaths than normal.
Sulfur Dioxide (SO2) in the ambient air has been associated with reduced lung function, increased
incidence of respiratory symptoms and diseases, irritation of the eyes, nose, and throat, and premature
mortality. Moderate activity levels that trigger mouth breathing, such as a brisk walk, are needed for
sulfur dioxide to cause health effects in most people.
Nitrogen Dioxide (NO2) inflames the lining of the lungs, and it can reduce immunity to lung
infections. This can cause problems such as wheezing, coughing, colds, flu and bronchitis
Pollutants
Short terma Long Term
b
µg/Ncm ppm Averaging
Time µg/Ncm ppm
Averaging
Time
Suspended
Particulate Matterc
TSP 230d 24 hours 90 1 year
e
PM-10
PM-2.5
150f
50 24 hours
60
25
1 yeare
1 yeare
Sulfur Dioxidec 180 0.07 24 hours 80 0.03 1 year
Nitrogen Dioxide 150 0.08 24 hours
Photochemical
Oxidants as Ozone
140 0.07 1 hours
60 0.03 8 hours
Carbon Monoxide 30 1 hour
9 8 hours
Leadg 1.5 3 months
g 1
a. Maximum limits represented by ninety-eight (98%) values not to exceed more than once a year. b Arithmetic Mean c SO2 and suspended particulate matter are sampled once every six days when using the manual methods. A minimum of twelve sampling days per
quarter or forty-eight sampling days each year is required for these methods. Daily sampling November be done in the future once continuous analyzers are produced and become available. d Limits of total suspended particulate matter with mass median diameter less than 25-50 µm e Annual Geometric mean f Provisional limits for Suspended Particulate Matter with mass median diameter less than 10 µm and below until sufficient monitoring data are
gathered to base a proper guideline. g Evaluation of this guideline is carried out for 24 hour averaging time and averaged over three moving calendar months. The Monitored average value for any three months shall not exceed the guideline value
REGIONAL STATE OF BROWN ENVIRONMENT 2019 4
Benzene exposure may cause narcosis: headache, dizziness, drowsiness, confusion, tremors and loss
of consciousness. Benzene also may cause moderate eye irritant and a skin irritant.
Toluene exposure can irritate the nose and throat causing coughing and wheezing. It also affect the
nervous system causing trouble concentrating, headaches, and slowed reflexes. Toluene prolonged or
repeated exposure can cause drying and cracking of the skin with redness and skin rash.
Xylene exposure can cause headaches, nausea, and vomiting, dizziness, light-headedness, and passing
out. Repeated exposure can affect concentration, memory, vision, and muscle coordination.
Particulate Matter 10 and Particulate Matter 2.5 can cause or aggravate a number of health
problems and have been linked with illnesses and deaths from heart or lung disease. These effects
have been associated with both short-term exposures (usually over 24 hours, but possibly as short as
one hour) and long-term exposures (years).
Monitoring and Evaluation of the Criteria Pollutants
The short-term evaluation for the six (6) criteria pollutants for the parameters namely; Ozone
(O3), Carbon Monoxide (CO), Sulfur Dioxide (SO2), Nitrogen Dioxide (NO2), Particulate Matter 10
and Particulate Matter 2.5 were evaluated on an hourly, eight hourly and 24-hours respectively.
Methods of Sampling
Differential Optical Absorption Spectroscopy (DOAS), is a widely used method to determine
concentrations of atmospheric parameters. DOAS Urdaneta City monitors nine (9) hazardous criteria
pollutants namely: Carbon Monoxide (CO), Photochemical Oxidants as Ozone (O3), Sulfur Dioxide
(SO2), Nitrogen Dioxide (NO2), Particulate Matter 10 and Particulate Matter 2.5, Benzene, Toluene
and Xylene. The process flow of amount determining pollutant concentration starts from the Emitter
which produces light rays then received by the Receiver, Opsis AR 500 System detects and analyzes
SO2, NO2, O3, and BTX while Model 48i Trace Level Enhanced analyzes CO concentration and
TEOM 1405-D analyzes PM10 and PM 2.5. After the equipment analyzes pollutant concentration the
Analogue Web logger Enviman automatically trasmits results from the Data Acquisition System to
the regional office monitoring network. Results are recorded in real time.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 5
Results and Interpretation
1. Ozone (O3)
1.1 Ozone, 1-Hour Average
There were 7358 data captured in CY 2019 and recorded values are below the NAAQGV of 140 µg /Ncm for 1-hour averages. Table 2 reflected
annual average value of 15.14 µg/Ncm, minimum ranges from 0.161 µg/Ncm to 6.987 µg/Ncm and maximum ranges from 25.02 µg/Ncm to 146.402
µg/Ncm.
Table 2. Ozone, 1-Hour Average Annual Data
No of Data
Data
coverage
Average;
µg/Ncm
Max;
µg/Ncm Date of Max
Min;
µg/Ncm Date of Min
98%-ile;
µg/Ncm
99%-ile;
µg/Ncm
January 550 73.92% 15.67 104.83 21/01/2019 15:00 0.16 02/01/2019 4:00 31.67 34.52
February 672 100.00% 19.20 34.64 22/02/2019 11:00 7.33 08/02/2019 5:00 30.01 31.38
March 743 99.87% 18.81 37.62 15/03/2019 6:00 6.92 13/03/2019 2:00 30.89 32.1
April 689 95.69% 17.27 146.40 19/04/2019 12:00 4.85 25/04/2019 27.59 29.06
May 744 100.00% 16.59 68.99 28/05/2019 7:00 6.99 18/05/2019 18:00 32.51 41.31
June 708 98.33% 15.80 69.02 09/06/2019 7:00 5.07 24/06/2019 1:00 34.06 42.05
July 742 99.73% 12.75 58.57 28/07/2019 9:00 0.36 08/07/2019 5:00 24.47 24.47
August 743 99.87% 16.14 71.48 26/08/2019 7:00 0.45 13/08/2019 6:00 27.57 35.95
September 455 61.16% 13.32 45.74 26/09/2019 7:00 1.33 20/09/2019 4:00 26.92 35.79
October 669 89.92% 15.82 48.52 03/10/2019 6:00 1.97 01/10/2019 2:00 27.53 27.53
November 279 37.50% 10.88 25.02 13/11/2019 15:00 0.31 24/11/2019 2:00 20.48 21.06
December 364 48.92% 9.43 35.03 08/12/2019 5:00 0.18 07/12/2019 23:00 19.36 20.95
Annual 7358 83.74% 15.14 146.402 19/04/2019 12:00 0.161 02/01/2019 4:00 27.76 31.35
REGIONAL STATE OF BROWN ENVIRONMENT 2019 6
1.2 Ozone, Eight (8) Hour Average
There were 960 data captured in CY 2019 and recorded values are below the NAAQGV of 60 µg/Ncm. Table 3, Ozone’s eight (8) hourly annual
average value is 15.08 µg/Ncm, with minimum value ranges from 0.628 µg/Ncm to 12.323 µg/Ncm and maximum value ranges from 16.98 µg/Ncm to 78.81
µg/Ncm.
Table 3. Ozone, 8-Hour Average Annual Data
No of Data
Data
coverage
Average;
µg/Ncm
Max;
µg/Ncm Date of Max
Min;
µg/Ncm Date of Min 98%-ile; µg/Ncm
99%-ile;
µg/Ncm
January 92 98.92% 14.72 35.51 15/01/2019 16:00 2.58 14/01/2019 16:00 26.94 27.37
February 84 100.00% 19.19 27.51 22/02/2019 8:00 12.27 06/02/2019 0:00 26.54 26.54
March 93 100.00% 18.86 29.00 23/03/2019 8:00 12.32 21/03/2019 27.62 27.89
April 88 97.78% 17.82 78.81 19/04/2019 12:00 9.74 25/04/2019 24.68 25.48
May 93 100.00% 16.52 29.82 28/05/2019 8:00 10.83 19/05/2019 26.35 26.8
June 89 98.89% 15.73 24.72 03/06/2019 10.11 20/06/2019 22.68 22.74
July 93 100.00% 12.74 27.94 28/07/2019 8:00 4.08 13/07/2019 0:00 22.05 25.31
August 93 100% 16.50 55.67 19/08/2019 8:00 10.84 16/08/2019 0:00 25.08 28.72
September 58 64% 13.42 25.69 26/09/2019 8:00 6.69 20/09/2019 16:00 22.30 23.84
October 84 90% 15.82 25.36 14/10/2019 8:00 6.535 01/10/2019 0:00 25.093 25.348
November 34 38% 10.87 17.83 26/09/2019 8:00 4.998 20/09/2019 16:00 17.14 17.49
December 59 63.4% 8.783 16.98 02/12/2019 8:00 0.628 24/12/2019 8:00 16.47 16.76
Annual 960 87.58% 15.08 78.81 19/04/2019 12:00 0.628 24/12/2019 8:00 23.58 24.52
REGIONAL STATE OF BROWN ENVIRONMENT 2019 7
2. Carbon Monoxide (CO)
2.1 Carbon Monoxide, 1-Hour Average
There were 6480 data captured in CY 2019 and recorded values are far below the NAAQGV of 30 ppm for 1-hour average. Table 4 presents
the carbon monoxide (CO) annual average value of 0.004 ppm, minimum ranges from 0 to 0.002 ppm and maximum ranges of 0.007 to 0.10 ppm.
Table 4. Carbon Monoxide, 1-Hour Average
No of
Data
Data
coverage
Average;
ppm Max; ppm Date of Max Min; ppm Date of Min
98%-ile;
ppm
99%-ile;
ppm
January 742 99.73% 0.004 0.038 21/01/2019 16:00 0.001 26/01/2019 20:00 0.01 0.01
February 672 100.00% 0.004 0.008 17/02/2019 20:00 0 05/02/2019 9:00 0.01 0.01
March 743 99.87% 0.005 0.06 02/03/2019 9:00 0.001 09/03/2019 7:00 0.01 0.01
April 60 8.33% 0.005 0.007 01/04/2019 12:00 0.002 03/04/2019 6:00 0.01 0.01
May
NO DATA June
July
August
September 126 16.94% 0.005317 0.01 28/09/2019 18:00 0 25/09/2019 19:00 0.01 0.01
October 667 89.65% 0.00 0.01 06/10/2019 12:00 0 07/10/2019 9:00 0.01 0.01
November 278 37.37% 0.01 0.01 27/11/2019 8:00 0 26/11/2019 18:00 0.01 0.01
December 648 87.10% 0.00 0.10 31/12/2019 21:00 0 14/12/2019 2:00 0.01 0.01
Annual 3936 67.37% 0.004 0.1 31/12/2019 21:00 0 05/02/2019 9:00 0.01 0.01
REGIONAL STATE OF BROWN ENVIRONMENT 2019 8
2.2 Carbon Monoxide, Eight (8) Hour Average
The recorded values are far below the NAAQGV of 9 ppm for eight (8) -hour averages. Table 5 reflected Carbon Monoxide (CO) eight (8) hourly
annual average of 0.01 ppm, minimum ranges from 0 to 0.003 ppm and maximum ranges from 0.01 ppm to 0.025 ppm. All results are below the NAAQGV
of 9 ppm.
Table 5. Carbon Monoxide, 8-Hour Average Annual Data
No of Data
Data
coverage
Average;
µg/Ncm Max; µg/Ncm Date of Max Min; µg/Ncm Date of Min
98%-ile;
µg/Ncm
99%-ile;
µg/Ncm
January 93 100.00% 0.004 0.008 21/01/2019 16:00 0.002 07/01/2019 8:00 0.01 0.01
February 84 100.00% 0.004 0.006 17/02/2019 16:00 0.002 26/02/2019 8:00 0.000 0.000
March 93 100.00% 0.005 0.025 02/03/2019 8:00 0.002 09/03/2019 0.01 0.01
April 8 8.89% 0.005 0.006 01/04/2019 16:00 0.003 03/04/2019 0.01 0.01
May
NO DATA June
July
August
September 16 18% 0.01 0.01 26/09/2019 16:00 0.00 28/09/2019 0:00 0.01 0.01
October 84 90% 0.003 0.010 10/10/2019 0:00 0.000 26/10/2019 8:00 0.010 0.010
November 41 46% 0.005 0.010 26/09/2019 16:00 0.000 28/09/2019 0:00 0.01 0.01
December 82 88.2% 0.005 0.019 31/12/2019 0:00 0.000
19/12/2019
16:00 0.01 0.01
Annual 501 68.89% 0.01 0.025 02/03/2019 8:00 0 28/09/2019 0:00 0.01 0.01
REGIONAL STATE OF BROWN ENVIRONMENT 2019 9
3. Sulfur Dioxide, 24 - Hour Average
Table 6 reflected Sulfur Dioxide (SO2) annual average of 11.73 µg/Ncm, minimum ranges from 6.41 to 12.55 µg/Ncm and maximum ranges from
9.89 µg/Ncm to 18.42 µg/Ncm. The recorded values met the 24-hourly average criteria of 180 ug/Ncm.
Table 6. Sulfur Dioxide, 24 - Hour Average Annual Data
No of Data Data
coverage
Average;
µg/Ncm
Max;
µg/Ncm
Date of
Max
Min;
µg/Ncm
Date of
Min
98%-ile;
µg/Ncm
99%-ile;
µg/Ncm
January 31 100% 11.99 14.26 17/01/2019 7.88 29/01/2019 14.24 14.26
February 28 100% 9.31 9.89 25/02/2019 8.24 02/02/2019 9.75 9.87
March 31 100% 8.67 10.86 10/03/2019 7.01 31/03/2019 10.36 10.86
April 30 100% 10.71 13.97 16/04/2019 6.41 01/04/2019 13.01 13.97
May 31 100% 13.22 14.63 18/05/2019 12.01 02/05/2019 14.42 14.63
June 30 100% 13.18 16.49 21/06/2019 11.73 07/06/2019 14.91 16.49
July 31 100% 12.55 14.75 14/07/2019 10.56 01/07/2019 14.67 14.67
August 31 100% 11.89 18.42 19/08/2019 10.01 16/08/2019 15.74 17.08
September 21 70% 12.93 15.47 20/09/2019 10.47 03/09/2019 15.32 15.40
October 28 90.32% 10.89 12.98 02/10/2019 9.82 09/10/2019 12.51 12.51
November 13 43% 13.58 15.33 16/11/2019 12.55 13/11/2019 15.01 15.17
December 31 100% 11.84 17.63 26/12/2019 8.77 14/12/2019 15.70 16.67
Annual 336 91.94% 11.73 18.42 19/08/2019 6.41 01/04/2019 13.80 14.30
REGIONAL STATE OF BROWN ENVIRONMENT 2019 10
4. Nitrogen Dioxide (NO2), 24 - Hour Average
Table 7 reflected Nitrogen Dioxide annual average of 27.80 µg/Ncm, minimum ranges from 7.62 µg/Ncm to 30.46 µg/Ncm and maximum
ranges from 28.26 µg/Ncm to 67.27 µg/Ncm. The recorded values met the 24-hourly average criteria of 150 µg/Ncm.
Table 7. Nitrogen Dioxide, 24 - Hour Average Annual Data
No of Data
Data
coverage
Average;
µg/Ncm
Max;
µg/Ncm
Date of
Max
Min;
µg/Ncm
Date of
Min
98%-ile;
µg/Ncm
99%-ile;
µg/Ncm
January 31 100% 18.53 41.32 23/01/2019 7.62 03/01/2019 38.98 41.32
February 28 100% 32.45 43.09 21/02/2019 24.63 10/02/2019 41.92 43.09
March 31 100% 29.41 41.79 02/03/2019 20.27 03/03/2019 36.22 41.79
April 30 100% 24.49 39.30 18/04/2019 12.16 19/04/2019 30.65 39.3
May 31 100% 22.40 32.86 06/05/2019 11.88 17/05/2019 32.20 32.86
June 30 100% 20.83 28.26 04/06/2019 15.81 09/06/2019 24.44 28.26
July 31 100% 20.38 30.72 31/07/2019 13.19 23/07/2019 29.94 29.94
August 31 100% 22.34 50.73 19/08/2019 10.52 23/08/2019 40.09 45.41
September 21 70% 29.58 35.30 27/09/2019 19.88 01/09/2019 35.14 35.22
October 28 90.32% 37.64 52.36 14/10/2019 30.46 05/10/2019 48.62 48.62
November 13 43% 34.519 39.824 14/11/2019 29.630 17/11/2019 39.568 39.696
December 31 100% 41.054 67.270 29/12/2019 23.045 01/12/2019 63.306 65.288
Annual 336 91.94% 27.80 67.27 29/12/2019 7.62 03/01/2019 38.42 40.90
REGIONAL STATE OF BROWN ENVIRONMENT 2019 11
5. Particulate Matter
5.1 Particulate Matter 10 (PM10), 24 - Hour Average
Table 8 reflected annual average PM10 value of 22.28 µg/Ncm, minimum ranges from 1.34 µg/Ncm to 16.69 µg/Ncm; and maximum ranges from
32.85 µg/Ncm to 121.36 µg/Ncm. The recorded values are below the NAAQGV of 150 µg/Ncm for 24-hour averages.
Table 8. PM10, 24-Hour Average Annual Data
No of Data Data
coverage
Average;
µg/Ncm
Max;
µg/Ncm
Date of
Max
Min;
µg/Ncm
Date of Min 98%-ile;
µg/Ncm
99%-ile;
µg/Ncm
January 31 100% 19.17 33.81 12/01/2019 8.44 04/01/2019 0.00 33.81
February 28 100% 21.68 34.50 22/02/2019 13.20 01/02/2019 29.64 34.50
March 31 100% 32.68 121.36 02/03/2019 16.69 16/03/2019 54.98 121.36
April 30 100% 20.86 32.85 22/04/2019 7.04 08/04/2019 32.36 32.85
May 31 100% 18.53 38.68 15/05/2019 7.98 09/05/2019 33.01 38.68
June 30 100% 16.15 48.35 25/06/2019 5.35 27/06/2019 34.38 48.35
July 31 100% 24.49 50.94 05/07/2019 7.55 11/07/2019 50.09 50.09
August 28 90% 16.53 36.28 16/08/2019 3.42 10/08/2019 34.47 35.38
September 21 70% 20.90 53.40 23/09/2019 1.34 01/09/2019 51.61 52.50
October 28 90.32% 27.44 48.03 19/10/2019 11.47 17/10/2019 47.24 47.24
November 18 60% 31.11 50.59 14/11/2019 12.73 18/11/2019 49.74 50.16
December 31 100% 17.82 33.41 03/12/2019 5.98 04/12/2019 32.06 32.74
Annual 338 92.53% 22.28 121.36 02/03/2019 1.34 01/09/2019 37.47 48.14
REGIONAL STATE OF BROWN ENVIRONMENT 2019 12
5.2 Particulate Matter 2.5 (PM2.5), 24 - Hour Average
Table 9 reflected annual average of PM2.5 of 15.70 µg/Ncm, minimum ranges from 0.61 µg/Ncm to 11.84 µg/Ncm; and maximum ranges from 23.04
µg/Ncm to 104.07 µg/Ncm. The high concentration was attributed by the burning of stock firewood within the compound of the monitoring site. The
recorded data met the NAAQGV of 50 µg/Ncm for 24-hour average.
Table 9. PM2.5, 24 - Hours Average Annual Data
No of Data Data
coverage
Average;
µg/Ncm
Max;
µg/Ncm
Date of
Max
Min;
µg/Ncm
Date of Min 98%-ile;
µg/Ncm
99%-ile;
µg/Ncm
January 31 100% 15.06 27.23 12/01/2019 5.76 04/01/2019 0.00 27.23
February 28 100% 16.31 28.44 22/02/2019 9.14 01/02/2019 24.99 28.44
March 31 100% 20.37 104.07 02/03/2019 7.15 16/03/2019 36.90 104.07
April 30 100% 13.94 31.73 05/04/2019 5.67 25/04/2019 24.15 31.73
May 31 100% 11.57 23.04 15/05/2019 5.22 13/05/2019 21.95 23.04
June 30 100% 11.27 36.26 25/06/2019 3.53 01/06/2019 23.00 36.26
July 31 100% 15.40 30.76 05/07/2019 6.48 29/07/2019 30.13 29.50
August 28 90% 12.45 28.87 16/08/2019 1.95 10/08/2019 28.80 28.83
September 21 70% 18.47 46.54 23/09/2019 1.26 01/09/2019 45.59 46.06
October 28 90.32% 25.84 48.35 19/10/2019 11.84 17/10/2019 46.97 45.59
November 18 60% 14.57 34.95 14/11/2019 1.97 28/11/2019 33.94 34.45
December 31 100% 13.12 37.73 24/12/2019 0.61 28/12/2019 33.76 35.74
Annual 338 92.53% 15.70 104.07 02/03/2019 0.61 28/12/2019 29.18 39.25
REGIONAL STATE OF BROWN ENVIRONMENT 2019 13
Table 10. Number and Percentage of Samples exceeding the National Ambient Air Quality Guideline Value
Month Carbon Monoxide (ppm)
Phtochemical Oxidants as Ozone
(µg/Ncm)
Sulfur Dioxide
(µg/Ncm)
Nitrogen
Dioxide
(µg/Ncm)
Particulate
Matter 10
(µg/Ncm)
Particulate
Matter 2.5
(µg/Ncm)
1-Hour 8-Hour 1-Hour 8-Hour 24-Hour 24-Hour 24-Hour 24Hour
Exceedance % Exceedance % Exceedance % Exceedance % Exceedance % Exceedance % Exceedance % Exceedance %
January 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
February 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
March 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
April 0
0
1 0.14 1 1.11 0 0 0 0 0 0 0 0
May 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
June 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
July No data - No data - 0 0 0 0 0 0 0 0 0 0 0 0
August No data - No data - 0 0 0 0 0 0 0 0 0 0 0 0
September 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
October 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
November 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
December 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
NAAQGV 35 9 140 60
180 150 150 50
REGIONAL STATE OF BROWN ENVIRONMENT 2019 14
6. Annual Number and Percentage of Samples exceeding the National Ambient Air
Quality Guideline Value
Table 10 presents the Number and Percentage of Samples exceeding the National Ambient
Air Quality Guideline Value.
6.1 Carbon Monoxide
The one hour and eight hour monthly average data recorded met the guideline values
of 30 ppm and 9 ppm respectively.
6.2 Ozone
The one hour and eight hour monthly average data recorded met the guideline values
of 140 µg/Ncm and 60 µg/Ncm respectively.
6.3 Sulfur Dioxide, 24 Hours Average
The twenty-four hour monthly average data recorded met the guideline values of 180
µg/Ncm for Sulfur Dioxide.
6.4 Nitrogen Dioxide, 24 Hours Average
The twenty-four hour monthly average data recorded met the guideline values of 150
µg/Ncm for Nitrogen Dioxide.
6.5 Particulate Matter
6.5.1 Particulate Matter (PM10)
The annual monthly generated data met the NAAQGV of 150 µg/Ncm.
6.5.2 Particulate Matter (PM2.5)
The annual monthly generated data met the NAAQGV of 50 µg/Ncm.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 15
7. Comparison of Annual Geometric Mean Data, CY 2015 to CY 2019
Table 11. Geometric Mean for CY 2015 to 2019
POLLUTANT
CRITERIA Time
GEOMETRIC MEAN (µg/Ncm) NAAQGV
NAAQGV
1-Year Unit
2015 2016 2017 2018 2019
OZONE
1 Hour
Averaging 35 20 21 17 15 140
µg/Ncm
8 Hour
Averaging 32 19 24 18 15 60
µg/Ncm
CARBON
MONOXIDE
1 Hour
Averaging 0.2 0.35 0.218 0.047 0.005 30
ppm
8 Hour
Averaging 0.2 0.2 0.15 0.047 0.005 9
ppm
SULFUR
DIOXIDE
24 Hour
Averaging 2 3 8 13 12 180 80 µg/Ncm
NITROGEN
DIOXIDE
24 Hour
Averaging 15 14 14 8 27 150
µg/Ncm
PARTICULATE
MATTER 10
24 Hour
Averaging 42 17 20 23 22 150 60 µg/Ncm
PARTICULATE
MATTER 2.5
24 Hour
Averaging 27 2 33 14 15 50 25 µg/Ncm
In comparison from CY 2015 to CY 2019 monitoring data, the annual geometric mean values for Ozone, Nitrogen Dioxide, Carbon Monoxide,
Particulate Matter 10 showed decreasing trend while the Particulate Matter 2.5 and Nitrogen Dioxide showed an increase. However, the pollutant
concentrations for CY 2015 to CY 2019 are all within the NAAAQGV and met the yearly monitoring guideline value.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 16
E.1.1.2 San Fernando City, La Union
San Fernando City, La Union
The Differential Optical
Absorption Spectroscopy (DOAS)
was installed at the vicinity of PNP
Camp Florendo Brgy. Parian, San
Fernando City, La Union. It is
approximately 250 meters away from
the national road. The equipment was
installed December 19, 2015.
Geographical Location
The City of San Fernando is
concurrently the capital of the
Province of La Union and the
administrative seat of Regional
Offices in Region 1. It is situated about
270 kilometers north-northwest of Manila. It stretches along a portion of the shoreline of Lingayen
Gulf and San Fernando Bay on the west. Along the town’s eastern boundaries lay the municipalities
of Bagulin and Naguilian. Towards the south is the municipality of Bauang, while in the north is the
municipality of San Juan. The City is in between 160 34’24.093” and 16
0 38’ 43.458” N latitude and
between 1200 16’ 41.638” and 120
0 25’ 42.305” E longitude. San Fernando City is 60 kilometers
away from Baguio City, 73 kilometers from Dagupan City and 217 kilometers from Laoag City.
Population and Land Area
The population of San Fernando City as of 2015 is 121,812. It has a total land area of 106.88 square
kilometers or about 7% of the total land area of La Union. The City consists of 59 barangays; 24
barangays are now considered urban while 35 are rural barangays. Urban area occupies an area of
1,927.7866 hectares while 8,037.9290 are occupied by the rural barangays.
Topography and Slope
A total of 5200 hectares or over 48.655 has a slope of 18% and below; 3,339 hectares or 27.50% have
slopes beyond 18%, while those with slope higher than 25% occupy 3,543 hectares or 29% of the
city’s land area. Generally the flat to slightly sloping areas are found within the coastal plains; those
above 18% to 25% beyond this and those with difficult terrain are found in the eastern interior of the
town near the boundary.
Methods of Sampling
Differential Optical Absorption Spectroscopy, or DOAS, is a widely used method to determine
concentrations of atmospheric species. DOAS in San Fernando City monitors nine (9) hazardous
criteria pollutants namely: Carbon Monoxide (CO), photochemical oxidants as Ozone (O3), Sulfur
Dioxide (SO2), Nitrogen Dioxide (NO2), Particulate Matter 10 and Particulate Matter 2.5, Benzene,
Toluene and Xylene. The process flow of amount determining pollutant concentration starts from the
Emitter which produces light rays then received by the Receiver, Opsis AR 500 System detects and
analyzes SO2, NO2, O3, and BTX while APMA-370 analyzes CO concentration and TEOM 1405-DF
analyzes PM10 and PM 2.5. After the equipment analyzes pollutant concentration the Analogue Web
logger Enviman automatically transfers results from the Data Acquisition System to the regional
office monitoring networks. Results are monitored in real time.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 17
Results and Interpretation
6. Ozone (O3)
1.1 Ozone, 1-Hour Average
There were 7865 data captured in CY 2019 and all data result met the NAAQGV of 140 µg/Ncm. Table 12 reflected annual average value of
28.44 µg/Ncm, minimum ranges from 1.22 µg/Ncm to 11.93 µg/Ncm and maximum ranges from 43.37 µg/Ncm to 133.88 µg/Ncm.
Table 12. Ozone, 1-Hour Average Annual Data
Data summary
table No of Data
Data
coverage
Average;
µg/Ncm
Max;
µg/Ncm Date of Max
Min;
µg/Ncm Date of Min
98%-ile;
µg/Ncm
99%-ile;
µg/Ncm
January 294 40% 46.16 133.88 20/01/2019 23:00 11.93 24/01/2019 2:00 113.20 128.61
February 672 100% 33.25 59.905 21/02/2019 12:00 10.84 28/02/2019 54.03 56.68
March 368 49% 31.90 50.612 25/03/2019 11:00 8.50 17/03/2019 5:00 48.09 48.69
April 717 100% 31.14 74.40 02/04/2019 18:00 7.76 13/04/2019 3:00 54.52 57.65
May 720 97% 26.62 84.09 03/05/2019 15:00 5.00 17/05/2019 4:00 49.88 51.80
June 720 100% 25.90 70.39 06/06/2019 19:00 4.67 02/06/2019 3:00 48.30 54.81
July 735 99% 23.24 44.53 2019-07-11 12:00 6.86 2019-07-12 00:00 40.55 41.64
August 743 100% 23.24 43.37 06/08/2019 11:00 8.40 27/08/2019 1:00 37.47 40.33
September 716 99% 24.75 73.27 28/09/2019 7:00 7.87 30/09/2019 1:00 51.05 53.89
October 743 100% 26.18 48.97 13/10/2019 14:00 7.51 31/10/2019 0:00 46.05 46.94
November 720 100% 22.90 49.35 15/11/2019 12:00 5.66 22/11/2019 4:00 44.07 44.98
December 717 96% 26.05 58.96 16/12/2019 21:00 1.22 16/12/2019 12:00 47.82 49.74
Annual 7865 90% 28.44 133.88 20/01/2019 23:00 1.22 16/12/2019 12:00 51.80 57.35
REGIONAL STATE OF BROWN ENVIRONMENT 2019 18
1.2 Ozone, Eight (8) Hour Average
There were 988 data captured in CY 2019 and nine (9) of the recorded values exceeded the NAAQGV of 60 µg/Ncm. Table 13, Ozones eight (8)
hourly annual average value is 28.57 µg/Ncm, with minimum value ranges from 9.74 µg/Ncm to 16.46 µg/Ncm and maximum value ranges from 37.63
µg/Ncm to 125.67 µg/Ncm. Recorded values showed 1 percent (9 out of 988) exceedances during the whole year of monitoring in CY 2019.
Table 13. Ozone, 8-Hour Average Annual Data
Data summary table No of Data Data
coverage
Average;
µg/Ncm
Max;
µg/Ncm Date of Max
Min;
µg/Ncm Date of Min
98%-ile;
µg/Ncm
99%-ile;
µg/Ncm
January 38 41% 48.20 125.67 19/01/2019 0:00 16.46 23/01/2019 103.32 125.67
February 84 100% 33.26 51.13 21/02/2019 8:00 14.14 28/02/2019 49.37 50.67
March 48 52% 32.14 47.72 23/03/2019 8:00 13.31 17/03/2019 45.57 47.72
April 90 100% 31.15 48.71 21/04/2019 8:00 11.07 13/04/2019 47.50 47.85
May 90 98% 26.59 47.41 27/05/2019 8:00 13.23 20/05/2019 43.77 45.00
June 90 100% 25.91 45.19 21/06/2019 8:00 10.49 02/06/2019 41.48 44.71
July 92 99% 23.21 39.76 04/07/2019 8:00 11.48 16/07/2019 35.31 37.48
August 93 100% 23.21 37.63 06/08/2019 8:00 9.95 27/08/2019 32.98 33.77
September 90 100% 24.24 53.53 22/09/2019 8:00 10.11 30/09/2019 43.62 51.58
October 93 100% 26.15 43.73 14/10/2019 8:00 10.13 31/10/2019 42.49 42.81
November 90 100% 22.90 43.48 15/11/2019 8:00 10.21 22/11/2019 39.75 41.49
December 90 97% 25.94 44.90 12/12/2019 8:00 9.74 06/12/2019 43.60 44.46
Annual 998 90% 28.57 125.67 19/01/2019 0:00 9.74 06/12/2019 47.95 51.69
REGIONAL STATE OF BROWN ENVIRONMENT 2019 19
2. Carbon Monoxide (CO)
2.1 Carbon Monoxide, 1-Hour Average
There were 1126 data captured in CY 2019 and recorded values are far below the NAAQGV of 30 ppm for 1-hour average. Table 14 presents
the carbon monoxide (CO) annual average value of 1.94 ppm, minimum ranges from 0.00 ppm to 1.88 ppm and maximum ranges of 5.26 ppm to 9.09
ppm. No data were recorded from the months of January to June due to on – going repair of the CO Analyzer and on the month of August due to the
module malfunction.
Table 14. Carbon Monoxide, 1-Hour Average
Data summary table No of Data Data
coverage
Average;
ppm
Max;
ppm Date of Max Min; ppm Date of Min
98%-ile;
ppm
99%-ile;
ppm
January
February
March
April
May
June 79 11% 0.87 5.50 22/06/2019 15:00 0.01 23/06/2019 4.87 5.06
July 457 61% 0.63 7.97 2019-07-04 21:00 0.00 2019-07-03 03:00 5.82 6.17
August
September 126 18% 5.64 9.09 25/09/2019 21:00 1.88 25/09/2019 8.51 8.94
October 299 40% 2.54 7.38 12/10/2019 7:00 0.00 08/10/2019 13:00 5.49 6.15
November 123 17% 1.11 8.71 21/11/2019 18:00 0.00 20/11/2019 5.32 7.24
December 42 6% 0.84 5.26 03/12/2019 10:00 0.00 01/12/2019 3.78 4.52
Annual 1126 13% 1.94 9.09 25/09/2019 21:00 0.00 2019-07-03 03:00 7.60 8.05
REGIONAL STATE OF BROWN ENVIRONMENT 2019 20
2.2 Carbon Monoxide, Eight (8) Hour Average
The recorded values are far below the NAAQGV of 9 ppm for eight (8) -hour averages Table 15 reflected Carbon Monoxide (CO) eight (8)
hourly annual average of 1.41 ppm, minimum ranges from 0.00 ppm to 1.07 ppm and maximum ranges from 0.34 ppm to 5.23 ppm. All results are
below the NAAQGV of 9 ppm. No data were recorded from the months of January to June and August due to the damaged filter holder and input
module malfunction.
Table 15. Carbon Monoxide, 8-Hour Average Annual Data
Data summary table No of Data Data coverage Average;
ppm Max; ppm Date of Max Min; ppm Date of Min
98%-ile;
ppm
99%-ile;
ppm
January
February
March
April
May
June 26 29% 0.33 1.66 22/06/2019 0.00 29/06/2019 1.64 1.66
July 58 62% 0.62 3.84 05/07/2019 0.00 17/07/2019 3.16 3.16
August
September 17 19% 5.23 7.77 25/09/2019 1.07 28/09/2019 7.58 7.67
October 38 41% 2.50 4.57 01/10/2019 0.93 04/10/2019 4.36 4.46
November 35 39% 0.49 2.75 21/11/2019 0.00 23/11/2019 2.40 2.57
December 13 14% 0.34 1.40 03/12/2019 0.00 01/12/2019 1.27 1.33
Annual 187 17% 1.583 7.77 25/09/2019 0.00 17/07/2019 6.70 7.05
REGIONAL STATE OF BROWN ENVIRONMENT 2019 21
3. Sulfur Dioxide, 24 - Hour Average
Table 16 reflected Sulfur Dioxide (SO2) annual average of 2.87 µg/Ncm, minimum ranges from 0.07 µg/Ncm to 2.68 µg/Ncm and maximum ranges
from 3.56 µg/Ncm to 13.11 µg/Ncm. The recorded values are far below the NAAQGV of 180 µg/Ncm for 24-hour average.
Table 16. Sulphur Dioxide, 14 - Hour Average Annual Data
Data summary
table
No of
Data
Data
coverage
Average;
µg/Ncm
Max;
µg/Ncm Date of Max
Min;
µg/Ncm Date of Min
98%-ile;
µg/Ncm
99%-ile;
µg/Ncm
January 13 42% 2.47 11.14 22/01/2019 1.27 29/01/2019 11.141 11.14
February 28 100% 1.71 3.56 14/02/2019 1.17 01/02/2019 2.992 3.56
March 16 52% 2.69 3.89 14/03/2019 1.79 23/03/2019 3.560 3.56
April 30 100% 3.99 8.57 12/04/2019 2.20 06/04/2019 6.21 8.57
May 31 100% 3.92 6.87 23/05/2019 2.68 06/05/2019 5.85 6.87
June 30 100% 4.64 8.50 22/06/2019 1.70 29/06/2019 7.86 8.50
July 31 100% 2.20 6.67 05/07/2019 0.07 20/07/2019 6.02 6.67
August 31 100% 3.26 13.11 20/08/2019 1.13 07/08/2019 8.56 10.83
September 30 100% 2.59 4.54 26/09/2019 1.03 12/09/2019 4.48 4.51
October 31 100% 2.44 6.60 01/10/2019 1.49 18/10/2019 5.69 6.15
November 30 100% 2.17 3.57 27/11/2019 1.57 20/11/2019 3.32 3.45
December 31 100% 2.34 13.90 07/12/2019 0.49 18/12/2019 8.56 11.23
Annual 332 91% 2.87 13.11 20/08/2019 0.07 20/07/2019 0.07 0.07
REGIONAL STATE OF BROWN ENVIRONMENT 2019 22
4. Nitrogen Dioxide (NO2), 24 - Hour Average
Table 17 reflected Nitrogen Dioxide annual average of 17.37 µg/Ncm, minimum ranges from 2.48 µg/Ncm to 21.71 µg/Ncm and maximum ranges from
15.34 µg/Ncm to 38.96 µg/Ncm. The recorded values are far below the NAAQGV of 150 µg/Ncm for 24-hour average.
Table 17. Nitrogen Dioxide, 24 - Hour Average Annual Data
Data summary
table No of Data
Data
coverage
Average;
µg/Ncm
Max;
µg/Ncm Date of Max
Min;
µg/Ncm Date of Min
98%-ile;
µg/Ncm
99%-ile;
µg/Ncm
January 13 42% 28.64 38.67 31/01/2019 21.71 21/01/2019 38.671 38.67
February 28 100% 26.78 37.33 21/02/2019 13.83 25/02/2019 35.150 37.33
March 16 52% 23.94 32.17 08/03/2019 15.53 31/03/2019 32.170 32.17
April 30 100.00% 19.97 34.24 12/04/2019 11.98 04/04/2019 28.94 34.24
May 31 100.00% 20.82 38.96 15/05/2019 13.50 22/05/2019 29.44 38.96
June 30 100.00% 15.38 25.36 03/06/2019 8.88 09/06/2019 22.05 25.36
July 31 100.00% 7.82 18.71 10/07/2019 2.49 19/07/2019 12.03 18.71
August 31 100.00% 7.69 15.34 27/08/2019 3.00 13/08/2019 13.84 14.59
September 30 100.00% 9.26 19.30 11/09/2019 2.48 29/09/2019 16.49 17.89
October 31 100.00% 15.54 23.68 26/10/2019 6.48 01/10/2019 23.55 23.61
November 30 100.00% 15.29 25.42 14/11/2019 4.97 19/11/2019 24.39 24.90
December 31 100.00% 17.36 27.62 12/12/2019 8.93 18/12/2019 25.89 26.76
Annual 332 91% 17.37 38.96 15/05/2019 2.48 29/09/2019 2.48 2.48
REGIONAL STATE OF BROWN ENVIRONMENT 2019 23
5. Particulate Matter
5.1 Particulate Matter 10 (PM10), 24 - Hour Average
Table 18 reflected annual average PM10 value of 2.96 µg/Ncm, minimum ranges from 0.00 µg/Ncm to 0.09 µg/Ncm and maximum ranges from 0.97
µg/Ncm to 60.30 µg/Ncm. The recorded values are far below the NAAQGV of 150 µg/Ncm for 24-hour average.
Table 18. PM10, 24-Hour Average Annual Data
Data summary
table No of Data
Data
coverage
Average;
µg/Ncm
Max;
µg/Ncm Date of Max
Min;
µg/Ncm Date of Min
98%-ile;
µg/Ncm
99%-ile;
µg/Ncm
January 27 87% 7.69 51.49 23/01/2019 0.007 10/01/2019 37.079 51.49
February 27 96% 1.46 18.225 26/02/2019 0.025 22/02/2019 0.177 0.241
March 28 90% 7.59 60.30 23/01/2019 0.001 10/01/2019 33.757 36.07
April 23 77% 0.242 1.24 09/04/2019 0.009 23/04/2019 1.238 1.238
May 28 93% 2.32 22.55 22/05/2019 0.00 10/05/2019 10.21 22.55
June 28 93% 4.55 16.92 14/06/2019 0.02 25/06/2019 15.32 16.92
July 31 100% 2.41 44.35 03/07/2019 0.01 01/07/2019 7.66 44.35
August 31 100% 1.52 6.05 28/08/2019 0.09 12/08/2019 5.98 6.02
September 27 90% 1.27 10.84 15/09/2019 0.00 11/09/2019 8.06 9.45
October 31 100% 3.81 34.45 24/10/2019 0.02 12/10/2019 30.03 32.24
November 30 100% 2.39 21.02 09/11/2019 0.01 12/11/2019 16.03 18.53
December 31 100% 0.28 0.97 10/12/2019 0.00 07/12/2019 0.88 0.93
Annual 342 94% 2.96 60.30 23/01/2019 0.00 11/09/2019 0.00 0.00
REGIONAL STATE OF BROWN ENVIRONMENT 2019 24
5.2 Particulate Matter 2.5 (PM2.5), 24 - Hour Average
There were 315 data captured in CY 2019 and data result met the NAAQGV of 50 µg/Ncm. Table 19 reflected annual average value of 0.81
µg/Ncm, minimum ranges from 0.00 µg/Ncm to 0.02 µg/Ncm and maximum ranges from 0.42 µg/Ncm to 42.62 µg/Ncm.
Table 19. PM2.5, 24 - Hours Average Annual Data
Data summary
table No of Data Data coverage
Average;
µg/Ncm
Max;
µg/Ncm Date of Max
Min;
µg/Ncm Date of Min
98%-ile;
µg/Ncm
99%-ile;
µg/Ncm
January 23 74% 0.175 1.08 30/01/2019 0.007 06/01/2019 1.08 1.08
February 26 93% 0.089 0.42 28/02/2019 0.002 03/02/2019 0.06 0.11
March 24 77% 0.394 1.684 30/01/2019 0.001 06/01/2019 1.68 1.68
April 19 63% 0.208 1.03 09/04/2019 0.002 03/04/2019 1.03 1.03
May 22 73% 2.26 22.55 22/05/2019 0.00 28/05/2019 22.55 22.55
June 25 83% 0.82 9.98 05/06/2019 0.00 08/06/2019 9.98 9.98
July 31 100% 2.25 42.62 03/07/2019 0.01 01/07/2019 7.60 42.62
August 29 94% 1.43 6.02 28/08/2019 0.00 20/08/2019 5.95 5.99
September 24 80% 1.20 10.80 15/09/2019 0.00 11/09/2019 8.33 9.56
October 31 100% 0.47 1.82 04/10/2019 0.02 12/10/2019 1.57 1.70
November 30 100% 0.29 0.98 30/11/2019 0.00 12/11/2019 0.75 0.87
December 31 100% 0.18 0.91 10/12/2019 0.00 05/12/2019 0.74 0.82
Annual 315 86% 0.81 42.62 03/07/2019 0.00 20/08/2019 0.00 0.00
REGIONAL STATE OF BROWN ENVIRONMENT 2019 25
6. Annual Number and Percentage of Samples exceeding the National Ambient Air Quality Guideline Value
6.1 Carbon Monoxide
The one hour and eight hour monthly average data recorded met the guideline values of 30 ppm and 9 ppm respectively.
6.2 Ozone
The annual hourly average of Ozone recorded data all met the National Ambient Air Quality Guideline Value (NAAQGV) of 140 µg/Ncm.
Moreover, the ozone 8-hourly average reflected that 9 exceedances were noted in the month of January, while the rest met the guideline value
NAAQGV of 60 µg/Ncm.
Table 20. Number and Percentage of Samples exceeding the National Ambient Air Quality Guideline Value
Month Carbon Monoxide (ppm)
Phtochemical Oxidants as Ozone
(µg/Ncm)
Sulfur Dioxide
(µg/Ncm)
Nitrogen
Dioxide
(µg/Ncm)
Particulate
Matter 10
(µg/Ncm)
Particulate
Matter 2.5
(µg/Ncm)
1-Hour 8-Hour 1-Hour 8-Hour 24-Hour 24-Hour 24-Hour 24Hour
Exceedance % Exceedance % Exceedance % Exceedance % Exceedance % Exceedance % Exceedance % Exceedance %
January 0 0 0 9 24% 0 0 0
0
February 0 0 0 0 0 0 0
0
March 0 0 0 0 0 0 0
0
April 0 0 0 0 0 0 0 0
May 0 0 0 0 0 0 0 0
June 0 0 0 0 0 0 0 0
July 0 0 0 0 0 0 0
0
August 0 0 0 0 0 0 0
0
September 0 0 0 0 0 0 0
0
October 0 0 0 0 0 0 0
0
November 0 0 0 0 0 0 0
0
December 0 0 0 0 0 0 0
0
NAAQGV 30 9 140 60 180 150 150 50
REGIONAL STATE OF BROWN ENVIRONMENT 2019 26
6.3 Sulfur Dioxide and Nitrogen Dioxide, 24 Hours Average
Both sulfur dioxide and nitrogen dioxide values reflected lower than the 24- hour
average National Ambient Air Quality Guideline Value (NAAQGV) of 180 µg/Ncm and 150
µg/Ncm respectively.
6.4 Particulate Matter
6.4.1 Particulate Matter (PM10)
The annual monthly generated data met the National Ambient Air Quality Guideline
Value (NAAQGV) OF 150 µg/Ncm.
6.4.2 Particulate Matter (PM2.5)
The annual monthly recorded data met the National Ambient Air Quality Guideline
Value (NAAQGV) OF 150 µg/Ncm.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 27
7. Annual Geometric Mean Data for CY 2016, CY 2017, CY 2018 and CY 2019
Table 21. Geometric Mean for CY 2016, 2017,2018 and 2019
In comparison from CY 2016 to CY 2019 monitoring data, the annual geometric mean values for Ozone, Carbon Dioxide, Particulate Matter 10 and
Particulate Matter 2.5 showed decreasing trend while Sulfur Dioxide and Nitrogen Dioxide showed slight increase. However, the pollutant concentrations for,
CY 2016, CY 2017, CY 2018 and CY 2019 are all within the NAAAQGV and met the long term guideline values.
POLLUTANT
CRITERIA Time
GEOMETRIC MEAN Short Term
NAAQGV
Long Term
NAAQGV Unit
2016 2017 2018 2019
OZONE
1 Hour
Averaging 49 41 38 27.86 140
µg/Ncm
8 Hour
Averaging 45 35 39 27.92 60
µg/Ncm
CARBON
MONOXIDE
1 Hour
Averaging 2.5 0.32 0.35 1.39 30
ppm
8 Hour
Averaging 2.8 0.22 0.57 0.88 9
ppm
SULFUR
DIOXIDE
24 Hour
Averaging 2.5 2 3.01 2.75 180 80 µg/Ncm
NITROGEN
DIOXIDE
24 Hour
Averaging 10 16 13.27 15.94 150
µg/Ncm
PARTICULATE
MATTER 10
24 Hour
Averaging 28 12 3.04 1.93 150 60 µg/Ncm
PARTICULATE
MATTER 2.5
24 Hour
Averaging 12 8 1.85 0.49 50 25 µg/Ncm
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 28
E.1.2 Particulate Matter System
E.1.2.1 Batac City, Ilocos Norte
The continuous ambient air monitoring
network is located inside the compound of
Mariano Marcos State University, Brgy. Quiling
Sur, City of Batac, Ilocos Norte. The area is
unpaved open school ground area with vegetation
(grass/weed). The equipment was installed in April
2014.
Geographical Location
Batac City is located in the mid southwestern portion of the province of Ilocos Norte. It lies
approximately within altitude 18º3’21.20” north and longitude 120º33’54.15” east. Its boundaries
include the Municipality of San Nicolas on the north; Municipality of Sarrat on the northeast;
Municipality of Marcos on the east-northeast; Municipality of Banna on the east; Municipality of
Pinili on the southeast;
Municipality of Currimao on the
southwest; and the Municipality
of Paoay on the west. It is about
472 kilometers north of Metro
Manila, about 18 km. south of
Laoag City, the capital of the
province; 275 km. north of San
Fernando City, the regional
center of Ilocos Region and 11.2
km east of the eastern shore of
South China Sea.
Travel time by motor
vehicle at this time is very
convenient because of well
paved roads and is 15 – 20
minutes to Laoag City and 8 – 9
hours to Metro Manila.
Batac City has a total
land area of 16, 101 hectares.
The terrain of the municipality
ranges from flat to rolling and hilly and to very steep. The broad valleys are mostly located in the
poblacion with a slope of 0-8%. All the rural barangays except those in the eastern part have a slope
of 0 -30%. There are various soil types that are poorly drained due to the heavy texture of most of the
subsoil. There are two rivers that cut across Batac, the Quiaoit River (Pagdanuman) and the Garasgas
River. Batac City lies within the tropical rain forest climate zone and experiences two distinct seasons.
Methods of Sampling
Beta Attenuation Monitor analyzes PM10 and PM2.5. When equipment analyzes pollutant
concentration the Analogue Weblogger Enviman automatically transfers results from the Data
Acquisition System to the central office and regional office monitoring network. Results are
monitored in real time.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 29
Results and Interpretation
1. Particulate Matter (PM10)
Table 22 presents the annual monitoring data CY 2019 for PM 10. As gleaned from Table 22, PM10 recorded annual average of
21.108 µg/Ncm, minimum ranges from 1.610 µg/Ncm to 19.454 µg/Ncm and maximum ranges from 25.910 µg/Ncm to 58.070 µg/Ncm.
There were 271 out of 365 (81.07%) data captured in CY 2019 and recorded values are below the NAAQGV of 150 µg/ Ncm.
Table 22. PM 10 Annual Monitoring Data, CY 2019
Data summary table NoOfDataOK Data coverage Average Maximum Date of Maximum Minimum Date of Minimum 98%-ile 99%-ile
January 17 54.84% 27.984 47.656 1/6/2019 10.137 1/29/2019 47.660 47.660
February 23 82.14% 22.130 40.571 2/12/2019 12.206 2/5/2019 40.570 40.570
March 7 22.58% 26.838 43.632 3/20/2019 19.454 3/19/2019 43.630 43.630
April 30 100.00% 27.139 41.000 4/9/2019 16.357 4/2/2019 38.400 41.000
May 31 100.00% 20.055 34.479 5/15/2019 11.140 5/8/2019 28.770 34.480
June 30 100.00% 16.897 28.076 6/3/2019 6.147 6/15/2019 25.000 28.080
July 31 100.00% 15.992 47.61 7/28/2019 5.570 7/17/2019 32.652 40.131
August 24 77.42% 18.990 58.07 8/13/2019 1.610 8/24/2019 44.647 51.359
September NO DATA
October 17 54.84% 21.680 29.000 10/15/2019 16.88 10/16/2019 27.349 28.174
November 30 100.00% 15.580 25.910 11/23/2019 5.370 11/20/2019 25.643 25.777
December 31 100.00% 18.9 27.83 12/11/2019 5.560 12/3/2019 27.230 27.540
Total 271 81.07% 21.108 58.070 8/13/2019 1.610 8/24/2019 40.789 44.825
REGIONAL STATE OF BROWN ENVIRONMENT 2019 30
2. Particulate Matter 2.5 (PM2.5)
No data was captured due to non-operation of the main board of PM2.5 Analyzer due to corrosion as reported by Electrobyte Environmental Concern
Corporation. Replacement of main board of PM 2.5 Analyzer is recommended. Request letter dated June 4, 2019 was forwarded to EMB Central office for
the replacement of the damaged PM 2.5 FH62C14 Analyzer for the continuous operation of the ambient air monitoring of the station since the region have no
approved fund for Capital Outlay.
3. Comparison of Particulate Matter Annual Geometric Mean Data for CY 2015 to CY 2019
Table 23 presents the summary of annual geometric mean for PM10 and PM2.5 monitoring for CY 2015 to CY 2019. As shown from the table, the
annual geometric mean for PM 10 and PM 2.5 consistently met the NAAQGV of 60 µg/ Ncm and 25 µg/ Ncm for PM 10 and PM 2.5 respectively.
Table 23. Annual Geometric Mean Data, CY 2015 and CY 2019
POLLUTANT
CRITERIA
GEOMETRIC MEAN (ug/Ncm) NAAQGV
1 year
REMAR
KS 2015 2016 2017 2018 2019
PARTICULATE
MATTER 10
24 Hour
Average 23 23 24 22 19 60
Within
Criteria
PARTICULATE
MATTER 2.5
24 Hour
Average 16 16 21 16 *No Data
35 (CY 2015)
25 (CY 2016 to
present
Within
Criteria
*Equipment breakdown
REGIONAL STATE OF BROWN ENVIRONMENT 2019 31
E.1.3 Manual Ambient Air Quality Monitoring
E.1.3.1 Particulate Matter 10 (PM 10)
The Environmental Management Bureau
(EMB) Region 1 had undertaken ambient air
quality monitoring in Vigan City, Province of
Ilocos Sur in accordance with Republic Act 8749
otherwise known as “The Philippine Clean Air Act
of 1999”. The ambient air quality monitoring in
Vigan City is a continuing activity of EMB to
assess part of the quality of air covering the entire
country.
The said activity is in compliance under Part
V, Rule XIV, Section 1 of the Implementing Rules
and Regulations of R.A. 8749 entitled “Air Quality
Management System”. The air quality assessment
in a certain area in relation to the National Ambient Air Quality Guidelines established by DENR is to
protect public health and welfare and reduce damage to property as well as provide an air quality
management control strategy from mobile, area and stationary sources. The assessment report will also
be needed in establishing an Air Quality Database that will be stored in a manner accessible to the public.
E.1.3.1a Vigan City
The Ambient Air Quality Monitoring Station is located at Plaza Encarnacion infront of Vigan City Hall.
The monitoring station is 6 meters away from the road and considered to be very busy because the road is
the main route of public utility vehicles, cars, trucks, buses, and motorcycles/tricycles passing and plying
in and out of the City.
Geographical Location
Vigan, the capital city of Ilocos Sur is situated along the western coast of Northern Luzon. It is bounded
on the north by the municipality of Bantay; on the east by the municipality of Santa; on the south by the
municipality of Caoayan; on the west by the municipality of Sta. Catalina and lastly, on the southwest by
the China Sea. It is 408 kilometers from Manila; 80 km. from Laoag City and 139 km. from San
Fernando, La Union.
It has a total land area of 2,886.085 hectares or 28.86085 sq. km. The heart of Vigan City is located
approximately between the meridian 120o 23’15” east longitude and the parallel 17o 34’30” north
latitude.
Vigan City has 39 barangays, the poblacion barangays consist of nine barangays, with a total land area of
192.45 hectares or 1.9245 sq. km. and the adjoining 30 barangays make 2,693.635 hectares or 26.93635
sq. km.
Population and Land Area
REGIONAL STATE OF BROWN ENVIRONMENT 2019 32
The whole City of Vigan is classified as urban based on the 1970 and 2000 population census and is
considered as a large city as classified by the Provincial Planning and Development Office. However, for
purposes of this plan, the nine (9) Poblacion barangays where the central business district of the city is
located are considered to be the urban barangays of Vigan. While the remaining 30 barangays are
referred to as the rural barangays.
Barangay IV, one of the poblacion barangays has the largest household population of 633 or 5.41% of the
total household population. While Brgy. Barraca holds the lowest with 78 or 0.67% of the 11,075
households in Vigan. The proximity and accessibility of Barangay IV (Solid West) to the central business
district, institutions, government agencies and other facilities plays an important factor in the large
number of people who decided to hold residency on the said barangay.
Topography and Slope
The land area of Vigan is generally flat with slopes of 20° which are found at Brgy.V, Tamag, and Paoa.
Out of the 2,886 hectares of the land area, 36.60% is residential and 45.18% is agricultural.
The drainage network of the eastern margin of Vigan-Bantay plain consist of deeply cut valleys whose
pattern is strongly controlled by main faulting trends, particularly those in the northerly and easterly
directions.
Vigan is being drained by the Vigan River and Bantay River, respectively, on the north and on the south
by Mestizo River whose water discharge comes from Bantaoay head water.
The relief of Vigan-Bantay plain is actively level to undulating with a slope ranging from 0° to 8°. Vigan
in particular is generally leveled with several hills in Brgy. Tamag, Bulala and Salindeg, sometimes
reaching about 50 meters in elevation and has a slope ranging from 3° to 8°.
The eastern margin of the plain characterized by a steep to a very steep slope, about 40° to 60°, the relief
often reaches an elevation of more than 600 meters especially in the northerly and easterly portion.
The dominant topographic feature in the eastern margin of the city is the Vigan Gap Hill where the
continuous shifting Vigan River cuts its way. The Gap Hill is located approximately 10 kilometers east of
Vigan.
Climate and Rainfall
Vigan falls under the first climate type in the Philippines which is characterized by two pronounced
season. The dry season normally commences from November to April reaching its peak during the torrid
months of April and May. The wet months are from June to October, with the month of August as the
rainiest period. The average annual rainfall is 190.683 mm. and the heaviest registered rainfall is 693.3
mm.
The average temperature is 26 °C. The average warmest temperature is 30.9 °C and the average
coldest temperature is 21.1 °C. An average of 7-10 typhoons visits Vigan annually. The average relative
humidity is 81%.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 33
Methodology of Sampling
The basic concept of ambient air monitoring is the measurement of a representative ambient air sample
taken from the monitoring station. The ambient air measurements are indicative of only a small portion
of the atmosphere and cannot be assumed to be representative of the total atmosphere. With these
concepts, sampling site selection should be included in the study of an air monitoring network to
determine the number of sampling stations.
Height is a considerable factor to be included in order to get a representative value or results of required
parameters such as the Particulate Matter (PM10). In this case therefore, it is assumed that one (1)
kilometer radius is considered to be an effective area for an ambient air monitoring station.
The computed PM10 concentration is expressed in micrograms per normal cubic meter (µg/Ncm), which
is further described into various levels of Air Quality Indices as follows:
POLLUTION INDEX RANGE (µg/Ncm)
Good 0 – 54
Fair 55 – 154
Unhealthy for Sensitive Groups 155 – 254
Very Unhealthy 255 – 354
Acutely Unhealthy 355 – 424
Emergency 425 – 504
The conduct of ambient air quality monitoring is limited only in the determination of Particulate
Matter (PM10) using a manual PM10 Air Sampler conducted on a 24 – hour, weekly for a year. The
analysis of the filters is Gravimetric Method.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 34
Sampling Results and Interpretation
The overall PM10 monitoring recorded minimum value ranges from 21 .tg/Ncm to 42 .tg/Ncm,
maximum value ranges from 132 .tg/Ncm to 171 .tg/Ncm with an annual average of 93 .tg/Ncm and
annual geometric mean of 87 .tg/Ncm. The highest concentration recorded in the month of April is 171
.tg/Ncm reflected an Air Quality Index of Unhealthy for Sensitive Groups due to the heavy traffic
congestion within the monitoring station, influx of tourist arrival in the city for the opening of the
“Binatbatan Festival” and installation of cobblestones within the central business district. Figure 1
represents the time series plot for PM10 of Vigan City, Ilocos Sur. Attached is the Annex H - Percent
Distribution (%) of Air Quality Monitoring Results (PM10). The results of quarterly monitoring are
tabulated below.
Quarter Min. Max. Average
DENR Criteria 24
hrs sampling Remarks
1st 42 137 98 150 within criteria
2nd 21 171 88 150 within criteria
3rd 40 132 90 150 within criteria
4th 24 137 97 150 within criteria
Annual Average 93 .tg/Ncm
Annual Geomean 87 .tg/Ncm 60 above criteria
The annual average of 93 .tg/Ncm and geometric mean of 87 .tg/Ncm met the NAAQVG of 150
.tg/Ncm. However, the annual geometric PM10 value of 87 .tg/Ncm did not met the annual Ambient Air
Quality Criteria of 60 .tg/Ncm for one-year monitoring reflecting a FAIR Air Quality Index.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 35
E.1.3.2 Particulate Matter 2.5 (PM2.5)
The Environmental Management Bureau (EMB) Region 1 had undertaken ambient air quality monitoring
in San Carlos City, Province of Pangasinan in accordance with Republic Act 8749 otherwise known as
“The Philippine Clean Air Act of 1999”. The ambient air quality monitoring in San Carlos City is a
continuing activity of EMB to assess part of the quality of air covering the entire country.
The said activity is in compliance under Part V, Rule XIV, Section 1 of the Implementing Rules and
Regulations of R.A. 8749 entitled “Air Quality Management System”. The air quality assessment in a
certain area in relation to the National Ambient Air Quality Guidelines established by DENR is to protect
public health and welfare and reduce damage to property as well as provide an air quality management
control strategy from mobile and stationary sources. The assessment report will also be needed in
establishing an Air Quality Database that will be stored in a manner accessible to the public.
Monitoring Station Location and Description
The Ambient Air Quality Monitoring Station is located within the City Plaza. The monitoring station is
approximately 13 meters away from the road and considered to be very busy because the road is one of
the main routes of public utility vehicles, cars, trucks, buses, and motorcycles/tricycles passing and
plying and traversing in and out of the City of San Carlos Province of Pangasinan.
Geographical Location
At the central part of Pangasinan lies the City of San Carlos. It falls within the latitudes 15 degrees 15
minutes to 15 degree 59 minutes and Longitude of 120 degree 15 minutes to 120 degrees 24 minutes. The
city is bounded on the east by the municipalities of Sta. Barbara and Malasiqui, on the south by the
municipalities of Basista and Urbiztondo, on the west by the municipalities of Aguilar and Bugallon and
on the north by municipalities of Calasiao, Binmaley and small portion of Lingayen.
Population and Land Area
Based from the first census ever conducted in the country by the National Census and Statistics Office
(NCSO) now the National Statistics Office (NSO) in 2012, San Carlos City had then only 174,143
population. This increased to 176,341 in 2013; further to 178,554 in 2014; 180,811 in 2015; 187,087 in
2016; 185,388 in 2017; 187,721 in 2018; 190,096 in 2019. With the population trend being consistently
realized, San Carlos City will have a projected population of 199,815 at the end of 2023.
In 2007 it was reported that the total land area of 170,087 but thru re-tax mapping, properties were
identified and therefore there was an increase in land area. However, it is experiencing a shift in land use,
with agricultural use decreasing from 80% of the total land area in 1977 to only 75% in 1988. The
decrease of 2,234 hectares of agricultural land is due to the 2006 land use plan which appropriates more
space to the residential, commercial and industrial sectors.16,608.746 hectares.
Topography
The City of San Carlos is predominantly plain area.
Climate and Rainfall
REGIONAL STATE OF BROWN ENVIRONMENT 2019 36
The hereunder type of climate classification under PAGASA defines the climate of San Carlos City as
dry type D This type contains 6 dry months utmost with equal number of wet months. Usually, the dry
season occurs during the months of November to April and the wet during the rest of the year.
The total annual rainfall in San Carlos City is 2.4 meters, with a monthly average of 201 mm. Maximum
rainfall is observed during the month of August with a rainfall mean of 8 and 13 mm. respectively. The
mean annual number of rainy days is 175.
The mean annual air temperature in the City is 27.37 degrees centigrade. April and May were observed to
be the hottest months with temperatures of 28.86 degrees centigrade and 25.86 degrees centigrade,
respectively, while the coldest month is January having a temperature of 25.86 degrees centigrade.
Methodology of Sampling
The basic concept of ambient air monitoring is the measurement of a representative ambient air
sample taken from the monitoring station. The ambient air measurements are indicative of only a small
portion of the atmosphere and cannot be assumed to be representative of the total atmosphere. With these
concepts, sampling site selection should be included in the study of an air monitoring network to
determine the number of sampling stations.
Height is a considerable factor to be included in order to get a representative value or results of
required parameters such as the Particulate Matter (PM2.5). In this case therefore, it is assumed that one
(1) kilometer radius is considered to be an effective area for an ambient air monitoring station.
The computed PM2.5 concentration is expressed in micrograms per normal cubic meter (µg/Ncm).
As per DAO 2013 – 13 setting the National Ambient Air Quality Guideline Value (NAAQGV) for PM2.5
at 50 µg/Ncm and 25 µg/Ncm respectively effective January 1, 2016.
The conduct of ambient air quality monitoring is limited only in the determination of Paticulate
Matter (PM2.5) using manual PM2.5 Air Sampler conducted on a 24 – hour, weekly for a year. The
analysis of the filter is Gravimetric Method.
Sampling Results and Interpretation
A total of fifty - nine (59) samplings were conducted for the year and 17 percent (10 out of 59) of
the monitoring data were compliant with the NAAQGV of 50 µg/Ncm. The lowest and highest PM2.5
concentration was recorded on the months of March and November respectively. The annual geometric
mean, with the value of 67 µg/Ncm, did not meet the long term National Ambient Air Quality Guideline
Value of 25 µg/Ncm. The high concentrations were attributed primarily by the following sources of
emissions:
Different motor vehicles plying in and out of the city and
Different motor vehicles parking area near the monitoring station
Construction activities near the monitoring station
REGIONAL STATE OF BROWN ENVIRONMENT 2019 37
Table 24. Annual Ambient Air Quality Data
Min Max Ave Number Percentage
Dec 31 - Jan 1 Partly cloudy to cloudy 64
Jan 8 - 9 Sunny 66
Jan 14 - 15 Sunny/Windy 60
Jan 30 - 31 Sunny/Windy 81
Feb 5 - 6 Sunny/Windy 102
Feb 11 - 12 Sunny/Windy 57
Feb 17 - 18 Sunny/Windy 85
Feb 23 - 24 Sunny/Windy 131
Mar 1-2 Sunny/Windy 182
Mar 7-8 Sunny 97
Mar 13-14 Sunny to partly cloudy 97
Mar 19-20 Partly cloudy to cloudy 59
Mar 25-26 Sunny/Windy 96
Mar 31-Apr 1 Sunny 163
Apr 6-7 Clear/Sunny Skies 102
Apr 12-13 Cloudy 85
Apr 24-25 Clear/Sunny Skies 110
May 1-2 Sunny/Cloudy 107
May 7-8 Cloudy/Rainy 89
May 13-14 Partly cloudy 139
May 19-20 Partly cloudy 83
May 25-26 Sunny 80
May 31-June 1 Partly Cloudy to at Times Cloudy 40
June 6-7 Sunny 80
June 12-13 Cloudy 65
June 18-19 Cloudy 74
June 24-25 Cloudy 119
Jun 30-Jul 1 Cloudy 93
July 6-7 Partly cloudy 84
July 12-13 Partly cloudy 119
July 18-19 Rainy 55
July 24-25 Partly Cloudy to at Times Cloudy 19
July 30-31 Rainy 89
Aug 5-6 Cloudy 88
Aug 11-12 Cloudy 129
Aug 17-18 Partly Cloudy 60
Aug 24-25 Overcast/Rainy 62
Aug 30-31 Overcast/Rainy 27
Sept 4-5 Cloudy 37
Sept 10-11 Sunny to partly cloudy 48
Sept 16-17 Overcast/Rainy 93
Sept 22-23 Sunny to Partly Cloudy 124
Sept 28-29 Partly Cloudy 57
Oct 4-5 Partly Cloudy 58
Oct 10-11 Sunny 98
Oct 16-17 Sunny 109
Oct 22-23 Sunny to Partly Cloudy 64
Oct 28-29 Sunny 113
Nov 3-4 Overcast/Rainy 35
Nov 9-10 Cloudy 67
Nov 15-16 Partly Cloudy 2
Nov 21-22 Partly Cloudy 73
Nov 27-28 Clear/Sunny Skies 90
Dec 3-4 Cloudy 3
Dec 9-10 Sunny 115
Dec 15-16 Sunny 49
Dec 21-22 Sunny 57
Dec 27-28 Clear/Sunny Skies 30
Dec 31 - Jan 1 Sunny 53*
80
68
159
*Special case under memorandum re: Instruction to submit air quality index (AQI) and concentration data from the continuous Ambient Air Quality Monitoring
Station (CAAQMS) in the celebration of New Year 2020 dated December 20, 2019
49Geometric Mean
Date of Sampling Weather ConditionPM2.5 Concentration
(µg/Ncm)
Range Sample Above NAAQGV
83%
60 81 68 4 100%
57 131 94
National Ambient Air Quality Guideline Value for PM 2.5 24 Hours - 50 µ g/Ncm
Annual Average2 182 81
98%-ile
4 100%
59 182 106 5 100%
85 163 115 4 100%
80 139 100 5 100%
40 119 76 4 80%
19 119 77 5 83%
27 129 73 4 80%
37 124 72 3 60%
58 113 89 5 100%
2 90 54 3 60%
3 115 51 3 50%
REGIONAL STATE OF BROWN ENVIRONMENT 2019 38
Table 25 shows PM2.5 minimum concentration was recorded on the 4th Quarter with value of 2
µg/Ncm and maximum value of 182 µg/Ncm on the 1st Quarter, with annual average and geomean values
of 80 µg/Ncm and 67 µg/Ncm respectively. The annual geometric mean did not meet the long term
(annual) National Ambient Air Quality Guideline Value of 25 µg/Ncm.
Table 25. PM2.5 Ambient Air Quality Monitoring Data CY 2019
Table 26. Summary of Data Comparison for Geometric Mean, CY 2018 to CY 2019
Quarter Minimum Maximum Average
1st Quarter 57 182 91
2nd Quarter 40 163 95
3rd Quarter 19 129 74
4th Quarter 2 115 64
Annual Average
Annual Geomean
98%-ile
80
67
159
C.Y. Min Max Average Geomean Remarks
2018 7 166 59 49 Non Compliant
2019 2 182 80 67 Non Compliant
Long Term NAAQGV
µg/Ncm50 25
REGIONAL STATE OF BROWN ENVIRONMENT 2019 39
E.1.3.2b Dagupan City
The Environmental Management Bureau
(EMB) Region 1 had undertaken ambient air
quality monitoring in Dagupan City, Province of
Pangasinan in accordance with Republic Act
8749 otherwise known as “The Philippine Clean
Air Act of 1999”. The ambient air quality
monitoring in Dagupan City is a continuing
activity of EMB to assess part of the quality of
air covering the entire country.
The said activity is in compliance under Part V,
Rule XIV, Section 1 of the Implementing Rules
and Regulations of R.A. 8749 entitled “Air
Quality Management System”. The air quality assessment in a certain area in relation to the National
Ambient Air Quality Guidelines established by DENR is to protect public health and welfare and reduce
damage to property as well as provide an air quality management control strategy from mobile and
stationary sources. The assessment report will also be needed in establishing an Air Quality Database that
will be stored in a manner accessible to the public.
Monitoring Station Location and Description
The Ambient Air Quality Monitoring Station is located within the compound of the CSI Mall, De
Venecia Road, Lucao District, Dagupan City, Pangasinan. The monitoring station is approximately 200
meters away from the diversion road and considered to be very busy because the road is one of the main
routes of public utility vehicles, cars, trucks, buses, and motorcycles/tricycles passing and plying and
traversing in and out of the City of Dagupan Province of Pangasinan.
Geographical Location
Dagupan City covers a total land area of 40,079,278.93 square meters or about 4,008 hectares (as per
City Assessor’s Record). However, the digitized cadastral maps reveal that the sum of the lands within
Dagupan’s boundaries is 4,447.10 hectares. It is bounded by the Lingayen Gulf in the north, San Fabian
in the northeast, Mangaldan in the east, Calasiao in the south and Binmaley in the west. The city falls
with latitude 160 01’ to 16
0 07’ north and longitude 120
0 18’ to 120
0 23’ east.
Population and Land Area
According to the census of 2015, Dagupan City has a population of 171,271 people with an income
classification of second class. Among all the cities and municipalities in Region I,
Dagupan City registered the highest population density with around 3,501 persons per sq. km.
Pangasinense/Panggalato is the predominant local dialect, spoken by 85.2 percent of its household
population in 2000. About 86.4 percent of the Dagupenos are Roman Catholics. As of 2002, 96.0 percent
of the households in the city were served with potable water while 95.6 percent had power/electric
supply.
Topography
REGIONAL STATE OF BROWN ENVIRONMENT 2019 40
Dagupan City stretches along the southern portion of the shoreline of the Lingayen Gulf, a coastal plain
having an almost flat terrain with slopes ranging from zero to three percent (0-3%) while the rest
considered as swampy areas, ponds, and other forms of wetlands or water bodies. Ground elevations are
generally between one to two meters (1-2 m) above Mean Sea Level (MSL).
Climate and Rainfall
The city belongs to climate Type I (Coronas Classification of Philippine Climate) characterized by two
seasons: the dry and the wet. Dry season starts in November and ends in May while wet season starts in
June and ends in October. Heavy rainfall is usually experienced during the months of July and August.
The coldest month is January.
The main atmospheric systems controlling rainfall in the area are the southwest monsoon from June to
September, northeast monsoon from December to February, and easterly waves from March to April.
The Inter-tropical Convergence Zone (ITCZ) and Local Thermal Convection also contribute significantly
to the total annual rainfall especially during summer (Dagupan City Ecological Profile, 2002).
Methodology of Sampling
The basic concept of ambient air monitoring is the measurement of a representative ambient air sample
taken from the monitoring station. The ambient air measurements are indicative of only a small portion
of the atmosphere and cannot be assumed to be representative of the total atmosphere. With these
concepts, sampling site selection should be included in the study of an air monitoring network to
determine the number of sampling stations.
Height is a considerable factor to be included in order to get a representative value or results of required
parameters such as the Particulate Matter (PM2.5). In this case therefore, it is assumed that one (1)
kilometer radius is considered to be an effective area for an ambient air monitoring station.
The computed PM2.5 concentration is expressed in micrograms per normal cubic meter (µg/Ncm). As per
DAO 2013 – 13 setting the National Ambient Air Quality Guideline Value (NAAQGV) for PM2.5 at 50
µg/Ncm and 25 µg/Ncm respectively effective January 1, 2016.
The conduct of ambient air quality monitoring is limited only in the determination of Paticulate Matter
(PM2.5) using manual PM2.5 Air Sampler conducted on a 24 – hour, weekly for a year. The analysis of
the filter is Gravimetric Method.
\Sampling Results and Interpretation
A total of sixty (60) samplings were conducted for the year and 25 percent (15 out of 60) of the
monitoring data were compliant with the NAAQGV of 50 µg/Ncm. The highest and lowest PM2.5
concentrations were recorded on the months of January and March respectively. The annual geometric
mean with the value of 63 µg/Ncm, did not meet the long term(annual) National Ambient Air Quality
Guideline Value of 25 µg/Ncm. The high concentrations were attributed primarily by the following
sources of emissions:
Different motor vehicles plying in and out of the city and
Different motor vehicles parking area near the monitoring station
Unpaved road and parking area leading to the monitoring station
Construction activities near the monitoring station
The annual PM2.5 concentration in Dagupan City station have shown a moderate decreasing trend
from 1st Quarter to 4th Quarter. A total of 25 percent (15 out of 60) are compliant with the NAAQGV of
50 µg/Ncm while the other results did not meet the Guideline Value.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 41
Min Max Ave Number Percentage
Dec 31 - Jan 1 Partly cloudy to cloudy 6
Jan 8 - 9 Sunny 86
Jan 19 - 20 Sunny to partly cloudy 21
Jan 25 - 26 Sunny/Windy 18
Jan 31 - Feb 1 Sunny/Windy 147
Feb 6 - 7 Sunny/Windy 105
Feb 12 - 13 Sunny/Windy 74
Feb 18 - 19 Sunny/Windy 87
Feb 24 - 25 Sunny/Windy 124
Mar 2-3 Sunny/Windy 73
Mar 8-9 Partly cloudy to cloudy 48
Mar 14-15 Sunny to partly cloudy 118
Mar 20-21 Sunny/Windy 64
Mar 26-27 Sunny/Windy 183
Apr 1-2 Sunny/Partly Cloudy 140
Apr 7-8 Clear/Sunny Skies 137
Apr 13-14 Partly Cloudy to at Times Cloudy 154
Apr 25-26 Sunny 75
Apr 30-May 1 Clear/Sunny Skies 76
May 6-7 Cloudy/Rainy 91
May 12-13 Sunny to partly cloudy 102
May 18-19 Partly Cloudy to at Times Cloudy 18
May 24-25 Clear/Sunny Skies 55
May 30-31 Partly cloudy 91
June 5-6 Partly cloudy 42
June 11-12 Cloudy 50
June 17-18 Partly Cloudy to at Times Cloudy 47
June 23-24 Cloudy to Rainy 68
June 29-30 Cloudy to Rainy 91
July 5-6 Partly Cloudy to at Times Cloudy 43
July 11-12 Partly cloudy 73
July 17-18 Rainy 39
July 23-24 Partly Cloudy to at Times Cloudy 75
July 29-30 Rainy 92
Aug 4-5 Partly Cloudy to at Times Cloudy 39
Aug 10-11 Cloudy 27
Aug 16-17 Sunny to Partly Cloudy 77
Aug 23-24 Overcast/Rainy 51
Aug 29-30 Overcast/Rainy 61
Sept 5-6 Partly Cloudy to at Times Cloudy 78
Sept 11-12 Partly Cloudy 67
Sept 17-18 Overcast/Rainy 78
Sept 23-24 Sunny 71
Sept 29-30 Cloudy 89
Oct 5-6 Sunny to Partly Cloudy 57
Oct 11-12 Sunny 56
Oct 17-18 Partly Cloudy 55
Oct 23-24 Partly Cloudy 57
Oct 30-31 Partly Cloudy 79
Nov 4-5 Partly Cloudy 93
Nov 10-11 Cloudy/Overcast 55
Nov 16-17 Sunny to partly cloudy 94
Nov 22-23 Partly Cloudy 109
Nov 28-29 Sunny 34
Dec 4-5 Sunny/Rainy 27
Dec 10-11 Sunny 54
Dec 16-17 Sunny 36
Dec 21-22 Sunny 87
Dec 27-28 Cloudy 64
Dec 31-Jan 1 Sunny 70*
73
63
153
\*Special case under memorandum re: Instruction to submit air quality index (AQI) and concentration data from the continuous Ambient Air Quality Monitoring
Station (CAAQMS) in the celebration of New Year 2020 dated December 20, 2019
75 154 126 4 100%
48 183 97 4 80%
74 147 107 5 100%
National Ambient Air Quality Guideline Value for PM 2.5 24 Hours - 50 µ g/Ncm
Annual Average
Date of Sampling Weather ConditionPM2.5 Concentration
(µg/Ncm)
Geometric Mean
98%-ile
RangeSample Above
NAAQGV
6 86 33 1 25%
18 102 72 5 83%
42 91 59 2 40%
39 92 65 3 60%
27 77 51 3 60%
67 89 77 5 100%
55 79 61 5 100%
34 109 77 4 80%
27 87 53 4 67%
6 183 45 75%73
Table 27. Annual Ambient Air Quality Data
REGIONAL STATE OF BROWN ENVIRONMENT 2019 42
2016 2 191 47 31 Non Compliant
2017 5 136 48 38 Non Compliant
2018 4 166 50 37 Non Compliant
2019 6 183 73 63 Non Compliant
Long Term NAAQGV
µg/Ncm50 25
RemarksC.Y. Minimum Maximum Average Geomean
Table 28 shows PM2.5 minimum concentration was recorded on the 1st Quarter with value of 6
µg/Ncm and maximum value of 183 µg/Ncm for the same Quarter, with annual average and geomean
values of 73 µg/Ncm and 63 µg/Ncm respectively. The annual geometric mean did not meet the long
term (annual) National Ambient Air Quality Guideline Value of 25 µg/Ncm.
Table 28. PM2.5 Ambient Air Quality Data CY 2019
Table 29. Summary of Data Comparison for Geometric Mean, CY 2016 to CY 2019
Table 29 shows the ambient annual average concentration of PM2.5 reflecting an increasing
trend from CY 2016 to CY 2019.
Quarter Minimum Maximum Average
1st Quarter 6 183 82
2nd Quarter 18 154 82
3rd Quarter 27 92 64
4th Quarter 27 109 64
Annual Average
Annual Geomean
98%-ile
73
63
153
REGIONAL STATE OF BROWN ENVIRONMENT 2019 43
WATER QUALITY MANAGEMENT
I. EXECUTIVE SUMMARY
LEGAL BASIS:
The Republic Act 9275 otherwise known as the Philippine Clean Water Act of 2004, provides that the
state shall pursue a policy of economic growth in a manner consistent with the protection and revival
of the quality of water resources within the framework of sustainable development. It is the policy of
the state to formulate a holistic national program of water quality management that focuses on
pollution prevention and recognizes that water quality resources management cannot be separated
from concerns about water sources and ecological protection, water supply, public health and quality
of life;
As a matter of policy and strategy to protect and sustainably manage the country’s surface water
resources, Section 5 of the Clean Water Act provides for the designation by the Department of
Environment and Natural Resources (DENR) in coordination with National Water Resources Board
(NWRB), of certain areas such as watersheds, river basins or water resources regions that share
common interests or face similar development programs and prospects as water quality management
areas (WQMA)
DENR DAO 2016-08 entitled Water Quality Guidelines and General Effluent Standards prescribes
the maximum water quality criteria that must be attained by various classified river systems. This set
of water quality parameters is also used by DENR in classifying bodies of water and designation of
Water Quality Management Areas. Amongst the parameters of importance include Dissolved Oxygen
(DO), pH, Biochemical Oxygen Demand (BOD), Total and Fecal Coliform parameters.
The classification of a water body according to a particular designated use or uses does not preclude
use of the water for other purposes that are lower in classification provided that such use does not
prejudice the quality required for such water. All classification and reclassification of water bodies
shall be adopted, only after public notice and hearing and upon affirmative findings by the DENR
Regional Office. The classification must establish the present and future most beneficial use of the
waters while reclassification is for the public interest and that the designated use is attainable upon
consideration of environmental, technological, social, economic and institutional factors.
The water quality monitoring that precedes the classification provides indications on the degree of
protection and mitigating measures required for the river system, its tributaries and their respective
watersheds.
Classification of Waterbodies
Region 1 has classified 24 river systems and 1 coastal waterbody. In the Province of Ilocos Norte,
three (3) rivers namely Bacarra-Vintar, Bonga and Laoag rivers are Officialy Classifed as Class A
waterbody; two rivers namely Bulu River and Banban rivers have 2 classifications: Class A at the
upstream and Class B at the downstream while only Quiaoit River is classified as Class C waterbody.
In the province of Ilocos Sur, two rivers namely Abra River and Buaya River are classified as Class
A; while Silag River has two classifications Class A/B and Tineg River is classified as Class B
waters.
In the province of La Union, five waterbodies are classified as Class A for Baroro River; Aringay
River as Class B; and Naguilian River (Lower) and Bauang river as Class C waterbodies.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 44
In the province of Pangasinan, Balincaguin River is classified as Class B and eight (8) are class C
waterbodies identified as Dagupan (Pantal), Sinocalan, Toboy, Tagamusing, Agno, Ambayaoan,
Alaminos and Bued rivers.
The DENR- Provincial Environment and Natural Resources Offices (PENROs) have conducted river
profiling in CY 2018 and identified list of tributaries of the officially classified waterbodies for a total
of 57 rivers. However, some of the rivers are diurnal in nature.
In CY 2019, the water bodies monitored for include the three Water Quality Management Areas, four
(4) recreational waterbodies, two priority rivers and twenty-three (23) adopted waterbodies by
different stakeholders. Water quality monitoring was conducted monthly in the established six (6)
monitoring stations for the designation of Bolo River System Water Quality Management Area;
thirty- seven (37) WQMA monitoring stations in the three (3) designated WQMAs; eleven (11)
monitoring stations in the two identified priority rivers (Agno & Abra Rivers): 41 established
recreational waterbodies and twenty three (23) adopted waterbodies were conducted quarterly.
Generally, the results of all the monitoring of the river systems in the Region meet the physico –
chemical parameters except for Fecal Coliform.
Water Quality Management Areas
There are six monitoring stations established and monitored for the designation of Bolo River System
Water Quality Management Area. The ten primary parameters monitored are potential of Hydrogen
(pH), Dissolved Oxygen (DO), five-day Biochemical Oxygen Demand (BOD5), Color, Phosphate,
Nitrate, Chloride, Temperature, Total Suspended Solids (TSS) and Fecal Coliform. The recorded
annual averages of all the parameters monitored met the respective water quality guideline values
except for Fecal Coliform.
The three (3) Water Quality Management Areas namely: Sinocalan Dagupan River System, Naguilian
River System and Lower Amburayan River System have established a total of thirty-seven (37)
monitoring stations which were monthly monitored. Generally, the annual results of monitoring met
the Water Quality Guidelines for potential of Hydrogen (pH), Dissolved Oxygen (DO), five-day
Biochemical Oxygen Demand (BOD5), Color, Phosphate, Nitrate, Chloride, Temperature, Total
Suspended Solids (TSS) except for Fecal Coliform parameter in some of the monitoring stations. For
the parameters Heavy Metals and Inorganic Compounds for CY 2018 and CY 2019, the monitoring
data revealed that all representative stations met and are far below their corresponding DENR Water
Quality Guidelines. Moreover, the presence or traces of OrganoChlorine Pesticides (OCPs) and
OrganoPhosphorous Pesticides (OPPs) were not detected for all representative stations of the SDRS,
NRS and LARS WQMAs.
The annual Geometric mean from CY 2017, CY 2018 and CY 2019 recorded that all stations
exceeded the DENR Water Quality Guideline of 200 MPN/100 ml sample for the three WQMAs.
Recreational Waterbodies
There are forty-one (41) established monitoring stations of the bathing beaches often visited by
foreign and local tourists in the Region. There are eleven (11) stations in the province of Ilocos Norte,
six (6) in the province of Ilocos Sur, twelve (12) in the provinces of La Union and Pangasinan.
Generally, the annual geometric mean for Total and Fecal Coliform met the Water Quality Gudelines
of 1,000MPN/ 100ml sample and 100MPN/100 ml sample respectively. However, exceedances were
noted in some of the monitoring periods especially during the on- set of rainy seasons.
Priority Rivers
Two priority rivers (Agno and Abra Rivers) were also monitored. Through the eleven monitoring
stations established. The recorded annual averages of the basic 10 parameters were met except for the
parameters Chloride, Dissolved Oxygen, BOD and Fecal Coliform in some of the monitoring stations.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 45
The high concentration for Cloride may be attributed to presence of high tide during the time of
sampling, while the low DO and high BOD due to absence of continuous flow and high Fecal
Coliform due to surface run-off during rainy season.
Adopt an Estero/Waterbody Program
The region has a total of forty-seven (47) signed Memorandum of Agreement (MOA) consisting of
forty-six (46) existing MOA that will expire on CY 2020, 2021 and 2023 and one (1) renewed MOA
that will expire on CY 2024 signed by the various organizations from Academe Sector (2), Hospital
(1), NGOs (23), NGAs (2), LGUs (5) and business/industry sectors (15).
The eight (8) years (CY 2011-CY 2019) implementation of the Adopt-an-Estero/Waterbody Program
along the designated Sinocalan-Dagupan River System Water Quality Management Area (SDRS-
WQMA) recorded a 75%-95% significant decrease in the concentration of coliform in the twenty-two
(22) established water quality monitoring stations in the SDRS-WQMA.
II. WATER QUALITY MANAGEMENT PROGRAMS
In compliance with the DAO 2016-08, the parameters monitored in CY 2019 are: potential of
Hydrogen (pH), Dissolved Oxygen (DO), five-day Biochemical Oxygen Demand (BOD5), Color,
Phosphate, Nitrate, Chloride, Temperature, Total Suspended Solids (TSS) and Fecal
Coliform.Samples from designated monitoring stations were analyzed at EMB Region I Laboratory.
Potential of Hydrogen (pH)
The pH scale is logarithmic and inversely indicates the concentration of hydrogen ions in the solution
(a lower pH indicates a higher concentration of hydrogen ions). This is because the formula used to
calculate pH approximates the negative of the base 10 logarithm of the molar concentration of
hydrogen ions in the solution. More precisely, pH is the negative of the base 10 logarithm of
the activity of the hydrogen ion.[1]
At 25 °C, solutions with a pH less than 7 are acidic and solutions with a pH greater than 7 are basic.
The neutral value of the pH depends on the temperature, being lower than 7 if the temperature
increases. The pH value can be less than 0 for very strong acids, or greater than 14 for very strong
bases.[2]
Dissolved Oxygen (DO)
DO levels fluctuate seasonally and over a 24-hour period. It varies with water temperature and
altitude. Cold water holds more oxygen than warm water and water holds less oxygen at higher
altitudes. Thermal discharges, such as water used to cool machinery in a manufacturing plant or a
power plant, raise the temperature of water and lower its oxygen content. Aquatic animals are most
vulnerable to lowered DO levels in the early morning on hot summer days when stream flows are low,
water temperatures are high, and aquatic plants have not been producing oxygen since sunset. [3]
Biochemical Oxygen Demand (BOD)
Biochemical Oxygen Demand (BOD) is the amount of dissolved oxygen needed (i.e. demanded) by
aerobic biological organisms to break down organic material present in a given water sample at
certain temperature over a specific period. The BOD value is most commonly expressed in milligrams
of oxygen consumed per liter of sample during 5 days of incubation at 20 °C and is often used as a
surrogate of the degree of organic pollution of water. [4]
Total Suspended Solids (TSS)
REGIONAL STATE OF BROWN ENVIRONMENT 2019 46
Total suspended solids is the dry-weight of suspended particles, that are not dissolved, in a sample of
water that can be trapped by a filter that is analyzed using a filtration apparatus. It is a water
quality parameter used to assess the quality of a specimen of any type of water or water body, ocean
water for example, or wastewater after treatment in a wastewater treatment plant. [5]
Color
Color is the characteristic of visual perception described through color categories, with names such
as red, orange, yellow, green, blue, or purple. This perception of color derives from the stimulation
of cone cells in the human eye by electromagnetic radiation in the visible spectrum. Color categories
and physical specifications of color are associated with objects through the wavelength of the light
that is reflected from them. This reflection is governed by the object's physical properties such as light
absorption, emission spectra, etc. [6]
Color is measured in units based on a platinum-cobalt standard solution that forms a yellow tint and is
limited to 15 units in public water supplies.
Temperature
The most common physical assessment of water quality is the measurement of temperature.
Temperature affects both the chemical and biological characteristics of surface water. It affects
the dissolved oxygen level in the water, photosynthesis of aquatic plants, metabolic rates of aquatic
organisms, and the sensitivity of these organisms to pollution, parasites and disease.
Thermal pollution is the introduction of water that is warmer than the body of water into which it
flows. It generally occurs near power plants. These industries discharge hot water that has been used
to cool equipment directly into streams. Another source of thermal pollution is urban runoff. This
water has been heated as it flowed over parking lots, streets and sidewalks. Plowing near streams or
the removal of the forest canopy during construction also contributes to thermal pollution by
decreasing shade, thereby increasing solar heating of the water's surface. In addition to increasing the
amount of solar radiation reaching the water's surface, removal of vegetation near streams often
results in increased erosion and increased amounts of sediments in the water. The sediments absorb
heat from sunlight rather than reflect it. This heats the water further. [7]
Nitrate
Nitrates are mainly produced for use as fertilizers in agriculture because of their high solubility and
biodegradability. The main nitrate fertilizers are ammonium, sodium, potassium, calcium, and
magnesium salts. Several million kilograms are produced annually for this purpose. The second major
application of nitrates is as oxidizing agents, most notably in explosives where the rapid oxidation of
carbon compounds liberates large volumes of gases. Sodium nitrate is used to remove air bubbles
from molten glass and some ceramics. Mixtures of the molten salt are used to harden some metals.[8]
Phosphate
A Phosphate is a chemical derivative of phosphoric acid. The phosphate ion is an inorganic chemical,
the conjugate base that can form many different salts. In organic chemistry, a phosphate,
or organophosphate, is an ester of phosphoric acid. Of the various phosphoric acids and phosphates,
organic phosphates are important in biochemistry and biogeochemistry (and, consequently,
in ecology), and inorganic phosphates are mined to obtain phosphorus for use in agriculture and
industry. [9]
Chloride
REGIONAL STATE OF BROWN ENVIRONMENT 2019 47
Chloride is also a useful and reliable chemical indicator of river / groundwater fecal contamination, as
chloride is a non-reactive solute and ubiquitous to sewage & potable water. Many water-regulating
companies around the world utilize chloride to check the contamination levels of the rivers and
potable water sources.
Another major application involving chloride is desalination, which involves the energy intensive
removal of chloride salts to give potable water. In the petroleum industry, the chlorides are a closely
monitored constituent of the mud system. An increase of the chlorides in the mud system may be an
indication of drilling into a high-pressure saltwater formation. Its increase can also indicate the poor
quality of a target sand.[10]
Total Coliform
Coliform bacteria include genera that originate in feces (e.g. Escherichia) as well as genera not of
fecal origin (e.g. Enterobacter, Klebsiella, Citrobacter). The assay is intended to be an indicator of
fecal contamination; more specifically of E. coli which is an indicator microorganism for
other pathogens that may be present in feces. Presence of fecal coliforms in water may not be directly
harmful and does not necessarily indicate the presence of feces.
Fecal Coliform
A fecal coliform is a facultatively anaerobic, rod-shaped, gram-negative, non-spore
forming bacterium. Coliform bacteria generally originate in the intestines of warm-blooded animals.
Fecal coliforms are capable of growth in the presence of bile salts or similar surface agents,
are oxidase negative, and produce acid and gas from lactose within 48 hours at 44 ± 0.5°C. [12]
Trace Metals
Trace metals are metals in extremely small quantities that reside in or are present in animal, plant cell
and tissues. They are necessary part of good nutrition, although they can be toxic if ingested in excess
quantities.
Trace metals include iron, magnesium, lithium, zinc, copper, chromium, nickel, cobalt, vanadium,
arsenic, molybdenum, manganese and selenium. The metallic elements can be categorized in two
groups: heavy metals and light metals.
Metals in the river come from natural as well as artificial sources. Metals that are naturally introduced
into the river come primarily from such sources as rock weathering, soil erosion, or the dissolution of
water-soluble salts. Naturally occurring metals move through aquatic environments independently of
human activities without any detrimental effects. However, metals added by human activities affect
the water quality.
Heavy metallic elements are iron, lead and copper while the light metals are sodium, magnesium and
potassium. Five heavy metals are linked to human growth, development, achievement and
reproduction. Even these metals, however, can become toxic or aesthetically undesirable when their
concentrations are too great. [13]
Several heavy metals, like cadmium, lead and mercury are highly toxic at relatively low
concentrations.
Arsenic (As)
Arsenic can exist in a metallic state in three forms (yellow, black, and gray; with gray
predominating) and in ionic forms. Arsenic is a poisonous substance, which is released
both from certain human activities and naturally from the Earth's crust. Humans may be
exposed to arsenic mainly through food and water, particularly in certain areas where the
groundwater is in contact with arsenic-containing minerals. Long-term exposure can
REGIONAL STATE OF BROWN ENVIRONMENT 2019 48
result in thickening of the skin, darker skin, abdominal pain, diarrhea, heart disease,
numbness, and cancer.
Cadmium (Cd)
The potential sources of cadmium are from electroplating activities and batteries.
Chromium (Cr)
Chromium compounds are primarily used in dyes and paints and in the tanning of leather.
In the automobile industry, hexavalent chromium is found in the primer paints for
refinishing applications.
Copper (Cu)
Copper is a mineral. It is found in many foods, particularly in organ meats, seafood, nuts,
seeds, wheat bran cereals, grain products, and cocoa products.
Lead (Pb)
Lead and lead compounds have been used in a wide variety of products found in and
around our homes, including paint, ceramics, pipes and plumbing materials, solders,
gasoline, batteries, ammunition, and cosmetics. Lead may enter the environment from
these past and current uses.
Mercury
Mercury is a highly toxic element that is found both naturally and as an introduced
contaminant in the environment. It can be a threat to the health of people and wildlife in
many environments that are not obviously polluted.
Zinc (Zn)
Zinc Sources can be a particularly problematic compound for industrial sites to deal with,
because the source of zinc in stormwater is often hard to determine. Industrial stormwater
often contains a mix of metals, sediment, oil & grease, and other potential pollutants with
many potential sources from the industrial site or neighbors (or nearby non-industry)
Inorganic Compounds
An inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is,
a compound that is not an organic compound.[14]
Ammonia
Ammonia is a non-persistent and non-cumulative toxicant to aquatic life. The toxicity of ammonia
can depend on pH, temperature and ionic composition of exposure water. The toxicity of
ammonia is primarily attributed to the un-ionised NH3. Being a neutral molecule, un-ionised
ammonia is able to cross epithelial membranes of aquatic organisms more readily than the
ammonium ion. However, ammonium ion can also contribute significantly to ammonia toxicity
under certain conditions. [14]
In general, more un-ionised ammonia exists at higher pH and hence overall toxicity is greater,
although the toxicity of the un-ionised form is less at higher pH. However, data also indicate that
at lower pH, less un-ionised NH3 is needed to produce its toxic effects because the ammonium ion
is responsible for some of the toxicity. At sufficiently lower pH, the relative amount of
ammonium ion increases and it dominates toxicity. Overall, the effect of pH on toxicity of
ammonia is largely explained by a combined toxicity of the un-ionised ammonia and ammonium
ion, with un-ionised ammonia contributing mostly to toxicity at high pH and ammonium ion
being more important at lower pH. [14]
Cyanide, Free
REGIONAL STATE OF BROWN ENVIRONMENT 2019 49
Cyanides are organic and/or inorganic compounds that contain the cyano group –CN. Cyanide
(CAS 151-50-8 when in the form of KCN) is a common industrial chemical used for nitrile and
methacrylate fibres and other organic nitrile compounds; extraction of gold and silver from low
grade ores, in electroplating and metal production. [15]
Cyanide also has other uses in pesticides
(Leduc et al. 1982). [16]
The cyanides present in effluents may be of different forms such as hydrocyanic acid HCN,
cyanide ion CN-, various metallo-cyanide complexes which span a wide range of stabilities
([M(CN)n]m-
), cyanogen (CN)2, cyanates (containing -OCN), thiocyanates (-SCN) and nitriles
(RCN, R for alkyl group). Free cyanide is the sum of cyanide present as molecular HCN and ionic
CN- whereas total cyanide includes also the measurable cyanide from breakdown of metallo-
cyanide and organic complexes. [17]
The different forms of cyanide have different chemical properties, and hence different degrees of
toxicity to aquatic organisms. The HCN and CN- present or derived from dissociation of
complexed or bound cyanides are the principal toxic forms, the former being more toxic because
it is able to cross biological membranes. [17]
The toxicity of cyanides is mainly through the
inhibition of cellular respiration. The binding of cyanide to haeme iron (III) of enzymes such as
cytochrome oxidase, prevents electron transfer to molecular O2.
Phosphates
Phosphate is an essential nutrient; its abundance promotes cyanobacterial blooms. Under
conditions of ample phosphate supply, cyanobacteria accumulate inorganic phosphate in excess of
their immediate requirements in polyphosphate bodies. However, when these nutrients are not
fully utilized by plants they can be lost from the farm.
Organochlorine Pesticides (OCPs)
Organochlorine pesticides are chlorinated hydrocarbons used broadly from the 1940s throughout the
1960s in agriculture and mosquito control. Representative compounds in this group include DDT,
methoxychlor, dieldrin, chlordane, toxaphene, mirex, kepone, lindane, and benzene hexachloride.
Humans can be exposed to organochlorine pesticides through unintentional inhalation exposure if you
are in an area where they were recently applied. The chemicals can also be consumed in fish, dairy
products, and other fatty foods that are infected. OCPs build up in the environment, they are very
persistent and move long distances in surface runoff or groundwater.
Exposure to OCPs over a short period may produce convulsions, headache, nausea, vomiting, tremors,
muscle weakness, salivation and sweating. Long-term exposure to OCPs may harm the liver, kidney,
central nervous system, thyroid and bladder. Many of these pesticides have been correlated to
elevated rates of liver or kidney cancer in animals. There is some data signifying that organochlorine
pesticides may also cause cancer in humans. [18]
OrganoPhosphorus (OPPs) Compounds
Organophosphorus compounds are organic compounds containing phosphorus. They are used
primarily in pest control as an alternative to chlorinated hydrocarbons that persist in the environment.
Some organophosphorus compounds are highly effective insecticides, although some are extremely
toxic to humans, including sarin and VX nerve agents. [19]
III. MANAGEMENT OF WATER QUALITY MANAGEMENT AREAS
REGIONAL STATE OF BROWN ENVIRONMENT 2019 50
The WQMA coverage has similar hydrological, hydrogeological, meteorological and geographical
conditions that affect the physicochemical, biological and bacteriological reactions and diffusions of
pollutants, especially towards the end of the river system that eventually drains to the Lingayen Gulf
and West Philippine Sea.
The WQMA shares defined common and similar water quality-related development programs,
prospects, and problems and have the prospect and potential of economic and social development.
Improvement and/or preservation of river quality are essential requisites for future growth of the area.
Land-use in the WQMA areas can be classified generally into agricultural, residential, forest and
commercial areas. Aquaculture is significant in Dagupan City and the municipality of Binmaley in the
province of Pangasinan and municipality of Bauang in the province of La Union.
A. DESIGNATION OF BOLO RIVER SYSTEM- WATER QUALITY MANAGEMENT
AREA
The proposed Bolo River System-Water Quality Management Area (BRS-WQMA) covers the
Municipalities of Adams, Bangui, Dumalneg and Pagudpud in the Province of Ilocos Norte.
The proposed Bolo River System Water Quality Management Area is bounded by the geographical
coordinates of 18°33'5.84" and 18°25'50.19" north latitudes; and 120°46'38.85" and 120°57'0.11" east
longitudes. The whole WQMA area has a total area of 18,263 hectares.
There are ten (10) barangays within the Bolo River System, with a total of 3,471 households and total
population of 15,016 based on 2010 CBMS Survey for the Municipality of Adams 2014 NSO Survey
for the Municipalities of Bangui, Dumalneg and Pagudpud.
Land-use in the proposed WQMA area can be classified generally into agricultural, residential, forest
and commercial areas.
The main channel of the Bolo River originates from the mountainous area of the Municipality of
Adams and flows downstream to Brgy. Isidro in the Municipality of Dumalneg; Brgy. Dampig and
Brgy. Tarrag, Pagudpud; Brgy. Lanao, Brgy. Malasin, Brgy. Nagbalagan and Brgy. Lorenzo, Bangui
where it drains to the Bangui Bay. This main channel has a length of 29.97 kilometers. At Sitio
Basset, Brgy. Isidro, Dumalneg, a minor tributary with a length of 5.11 kilometers from Barangay
Pancian, Pagudpud converges into the main channel of the Bolo River. A minor tributary with a
length of 4.28 kilometers originates at Abang Falls in the Municipality of Bangui which merges with
the main channel of the Bolo River at Brgy. Lanao.
The Bolo River has an average width of 48.22 meters during the dry season and 57 meters during the
wet season, with the widest at 135 meters at Caramuangin Bridge in the Municipality of Bangui and
the narrowest is 31 meters at Brgy. Pancian, Pagudpud. Its average depth during the dry season is 0.46
meters and 1.37 meters for the wet season, the deepest part measures 1.8625 meters at Caramuangin
Bridge in Bangui, Ilocos Norte, the shallowest portion is 0.1375 meters at Sitio Anat, Brgy.
Poblacion, Adams, Ilocos Norte.
The highest recorded flow of 158.51 m3/sec is at Sitio Anat located between the Municipalities of
Adams and Dumalneg. The lowest recorded flow rate is 0.29 m3/sec at Caramuangin Bridge, Bangui,
Ilocos Norte.
Generally, the river is used for four major activities: fishing, agriculture, tourism and domestic
purposes. Use of the river for bathing and washing clothes is also common.
As provided for in DENR Memorandum Circular No. 2001-09, Series of 2001, the upstream portion
REGIONAL STATE OF BROWN ENVIRONMENT 2019 51
of the Bolo River in Sitio Anat, Brgy. Poblacion in the Municipality of Adams was officially
classified as Class A water body, while the downstream portion originates from Sitio Cabacan, Brgy.
Poblacion, Adams passing through the Municipalities of Dumalneg, Pagudpud and Bangui was
officially classified as Class B water body.
Six (6) monitoring stations were sustained as of CY 2019 for the water quality monitoring of the river
system. Four (4) out of six (6) stations located in the municipalities of Adams, Bangui and Dumalneg
had been continuously monitored monthly since July 2017. Two additional stations located in the
Municipalities of Adams and Pagudpud were added in CY 2018. In accordance with DAO 2016-08,
monthly monitoring for the primary parameters was conducted since January 2019.
WATER QUALITY MONITORING OF THE BOLO RIVER SYSTEM
A.1. Potential of Hydrogen (pH)
Table 30 shows the pH Monitoring Data for Class B Water Type. All monitoring stations met the
DENR Water Quality Guideline (6.5-8.5) for pH.
Table 30. Potential of Hydrogen Monitoring Data, CY 2017
Station ID NAME OF STATION
PARAMETER
MIN MAX AVE POTENTIAL OF HYDROGEN
Jul Aug Sep Oct Nov
ADA-2 Poblacion, Adams 8.5 8.0 7.2 8.0 7.6 7..2 8.5 7.9
ADA-1 Cabacan – Adams,
Ilocos Norte 8.5 8.0 8.3 8.1 7.2 7.2 8.0 8.0
DUM-1 Brgy. San Isidro
(Midstream) 8.4 7.8 8.4 8.3 7.3 7.3 8.4 8.0
BAN-2 Abang Falls 8.6 7.6 6.7 8.0 7.3 6.7 8.6 7.6
BAN-1
Caramuangin Bridge,
Brgy. Lanao
(Downstream)
8.4 7.8 8.3 8.5 7.2 7.2 8.5 8.0
DENR Water Quality Guideline
Value for Class "B" Waters 6.5-8.5
The pH values recorded in most of the monitoring stations met the DENR Water Quality Criteria set
for Class A and B Water Type of 6.5 to 8.5 as shown in Table 31. The pH values in the BAN-1
monitoring station for the months of March, October and December exceeded the maximum pH
criteria of 8.5. Moreover, the pH values in the DUM-1 monitoring station for the month of October
also exceeded the DENR Water Quality Criteria set for Class B Water Type.
Table 31. pH Monitoring Data, CY 2018
Statio
n
ID
Name of Station
Potential of Hydrogen (pH)
Fe
b
Ma
r
Ap
r
Ma
y
Ju
n
Ju
l
Au
g
Se
p
Oc
t Nov
De
c
Av
e
ADA-
3
Anat - Adams, Ilocos Norte
(CLASS A) - - - - - 8.0 8.5 8.1 7.9 8.3 8.5 8.2
REGIONAL STATE OF BROWN ENVIRONMENT 2019 52
(-) no sampling in June due to continuous heavy rainfall and typhoons
Table 32 shows the pH Monitoring Data for Class B and Class A Water Type, respectively for CY
2019. Most of the pH value of the monitoring stations met the DENR Water Quality Criteria set for
Class A and B Water Type of 6.5 to 8.5 except in the monitoring stations at ADA-3 for February and
March and DUM-1 for the month of February.
Table 32. pH Monitoring Data, CY 2019
STATION
I.D NAME OF STATION
Potential of Hydrogen (pH)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Ave
ADA-3 Sitio Anat (CLASS A),
Poblacion, Adams - 8.7 8.6 8.5 8.3 - 7.7 7.5 7.4 8.0 7.4 8.0
ADA-1 Poblacion, Adams - 8.5 8.4 8.5 8.2 7.9 7.8 7.3 6.9 7.4 7.0 7.8
PAG-1 Pancian, Pagudpud
(Downstream) - 8.2 7.8 8.1 8.2 7.6 7.8 7.9 8.2 7.0 6.9 7.8
DUM-1 Brgy. San Isidro (Midstream) - 8.6 8.4 8.1 8.5 8.3 7.8 7.9 8 8.2 7.9 8.2
BAN-2 Abang Falls - Stagnan
t Dry Dry 8.5 Dry 7.9 7.7 7.9 8.4 7.7 8.0
BAN-1
Caramuangin Bridge, Brgy.
Lanao
(Downstream)
- 8.2 8 8.2 8.1 7.7 7.6 7.2 6.7 8.2 7.8 7.8
DENR Water Quality Guideline Value for
Class " A " Waters 6.5-8.5
DENR Water Quality Guideline Value for
Class " B " Waters 6.5-8.5
ADA–
2
Cabacan – Adams, Ilocos
Norte - 8.2 8.3 8.3 - 7.8 8.0 8.1 8.3 8.3 8.4 8.2
ADA–
1
Poblacion, Adams, Ilocos
Norte - 8.3 8.0 8.3 - 8.0 8.5 8.3 8.2 8.2 8.3 8.2
PAG–
1
Pancian – Pagudpud, Ilocos
Norte - 8.0 7.9 8.0 - - -- 8.2 8.3 8.2 8.1 8.1
DUM
–1
San Isidro – Dumalneg, Ilocos
Norte
8.
0 8.4 8.0 7.9 - 8.0 8.1 7.9 8.9 8.3 8.5 8.2
BAN–
2
Caramuangin – Bangui, Ilocos
Norte
8.
0 7.9 7.8 7.8 - 8.0 8.2 8.1 8.0 7.9 8.2 8.0
BAN–
1
Abang Falls – Bangui, Ilocos
Norte
8.
1 8.6 - - - 8.5 8.5 7.3 8.6 8.3 8.7 8.3
DENR Water Quality Guideline
Value
for Class "B" Waters
6.5-8.5
DENR Water Quality Guideline
Value
for Class "A" Waters
6.5-8.5
REGIONAL STATE OF BROWN ENVIRONMENT 2019 53
A.2. Dissolved Oxygen (DO)
Based on the tabulated monitoring data in Table 33, all stations met the minimum DO requirement of
5.0 mg/L to sustain aquatic life for all the monitoring periods. The DO values range from 7.9 mg/L to
9.6 mg/L.
Table 33. Dissolved Oxygen (DO) Monitoring Data, CY 2017
Station
ID NAME OF STATION
PARAMETER
AVE DISSOLVED OXYGEN (DO)
Jul Aug Sep Oct Nov
ADA-2 Poblacion, Adams 9.6 8.4 8.7 8.5 8.6 8.8
ADA-1 Cabacan – Adams, Ilocos Norte 8.9 8.0 8.3 8.6 8.3 8.4
DUM-
1 Brgy. San Isidro (Midstream) 8.7 8.7 8.0 8.6 8.3 8.5
BAN-2 Abang Falls 9.6 8.9 8.4 8.6 8.3 8.8
BAN-1 Caramuangin Bridge, Brgy. Lanao
(Downstream) 8.9 8.1 9.0 8.4 7.9 8.5
DENR Water Quality Guideline
Value for Class "B" Waters ≥5.0 mg/L
Table 34 presents the Dissolved Oxygen Monitoring Data for CY 2018 for Class B and Class A Water
Classification. As reflected from the table, all stations met the DENR water quality guideline for both
Class B and Class A waters that is 5 mg/L. Figure 5 shows the graphical presentation of Dissolved
Oxygen (DO) data for CY 2018. The annual average of the DO results also showed that all
monitoring stations met the DENR water quality guideline of 5.0 mg/L to sustain aquatic life.
Table 34. Dissolved Oxygen (DO) Monitoring Data for CY 2018 Statio
n
ID
Name of Station Dissolved Oxygen (DO)
Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ave
ADA-
3
Anat - Adams, Ilocos Norte
(CLASS A) 9.1 8.8 9.2 7 - 8.6 8.5 8.5 8.3 8.6 9.2 8.6
ADA–
2 Cabacan – Adams, Ilocos Norte - 8.6 9.3 8 - 8.4 8.8 8.4 9.2 8.7 9.5 8.8
ADA–
1 Poblacion, Adams, Ilocos Norte - 8.9 8.8 7.6 - 8.6 8.7 8.6 9.1 8.8 9.5 8.7
PAG–
1 Pancian – Pagudpud, Ilocos Norte - 9.0 9 7.7 - - -- 8.6 9.2 8.4 9.7 8.8
DUM–
1
San Isidro – Dumalneg, Ilocos
Norte 9.1 8.8 9.2 7 - 8.2 8.2 8.8 8.4 8.5 9.6 8.6
BAN–
2
Caramuangin – Bangui, Ilocos
Norte 8.9 8.7 9 7.2 - 9.2 8.2 8.5 8.5 8.3 8.6 8.5
BAN–
1
Abang Falls – Bangui, Ilocos
Norte 9.1 8.2 - - - 8.4 8.0 8.5 8.1 8.7 9.4 8.6
DENR Water Quality Guideline
for Class "B" Waters ≥5.0 mg/L
REGIONAL STATE OF BROWN ENVIRONMENT 2019 54
(-) no sampling in June due to continuous heavy rainfall and typhoons
Table 35 shows the monitoring data for the six (6) established monitoring stations of the Bolo River
System. As gleaned from the table, all monitoring stations met their respective DENR Water Quality
Guideline for Class A and Class B water classification for the Dissolved Oxygen parameter.
Table 35. Dissolved Oxygen (DO) Monitoring Data for Q1-Q4 of CY 2019
STATION
I.D NAME OF STATION
Dissolved Oxygen (DO)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Ave
ADA-3 Adams 3 - Sitio Anat (CLASS A) - 10 9.3 8.4 8.4 - 8.6 9.1 8.3 8.3 8.6 8.8
ADA-1 Poblacion, Adams, Ilocos Norte - 9.6 9.1 8.8 8.4 8.5 8.8 9 8.5 8.7 8.3 8.8
PAG-1 Pancian, Pagudpud (Downstream) - 9.3 8.8 8.5 9.0 7.8 9.1 8.9 8.5 8.1 8.9 8.7
DUM-1 Brgy. San Isidro (Midstream) - 9.1 8.8 8.3 8.0 8.1 8.9 9.2 8.5 8.4 8.8 8.6
BAN-2 Abang Falls - Stagnant Dry Dry 8.2 Dry 8.2 8.5 8.6 9.1 8.7 8.6
BAN-1 Caramuangin Bridge, Brgy. Lanao
(Downstream) - 8.3 8.3 8.8 8.1 7.9 7.9 9.1 8.8 8.6 7.8 8.4
DENR Water Quality Guideline Value for
Class " A " Waters ≥5.0 mg/L
DENR Water Quality Guideline Value for
Class " B " Waters ≥5.0 mg/L
A.3. Biochemical Oxygen Demand (BOD)
Table 36 shows the monitoring data of Biochemical Oxygen Demand for CY 2017 for Class A and
Class B Water Type. All monitoring stations except the BAN-1 monitoring station in the month of
July met the DENR water quality guideline (BOD ≤5 mg/L) for Class B waters and BOD ≤3 mg/L for
Class A waters.
Table 36. Biochemical Oxygen Demand (BOD) Monitoring Data for CY 2017
Station ID NAME OF STATION
PARAMETER
AVE Biochemical Oxygen Demand (BOD)
Jul Aug Sep Oct Nov
ADA-2 Adams 1 - Baset 1 1 1 1 2 1
ADA-1 Cabacan – Adams, Ilocos
Norte 4 2 1 1 1 2
DUM-1 Brgy. San Isidro
(Midstream) 2 3 3 1 2 2
BAN-2 Abang Falls 2 3 4 1 2 2
BAN-1
Caramuangin Bridge,
Brgy. Lanao
(Downstream)
10 3 2 2 2 4
DENR Water Quality Guideline
Value for Class "B" Waters ≤5.0 mg/L
DENR Water Quality Guideline
for Class "A" Waters ≥5.0 mg/L
REGIONAL STATE OF BROWN ENVIRONMENT 2019 55
Table 37 shows the monitoring data of Biochemical Oxygen Demand for CY 2018 for Class B and
Class A Water Classification. All monitoring stations met the DENR water quality guideline (BOD ≤5
mg/L) for Class B waters and BOD ≤3 mg/L for Class A waters.
Table 37. Biochemical Oxygen Demand (BOD) Monitoring Data for CY 2018
(-) no sampling in June due to continuous heavy rainfall and typhoons
Table 38 shows the monitoring data of Biochemical Oxygen Demand for CY 2019 for Class B and
Class A Water Classification. All monitoring stations met the DENR water quality guideline (BOD ≤5
mg/L) for Class B waters and BOD ≤3 mg/L for Class A waters. Figure 9 shows the graphical
presentation of Biochemical Oxygen Demand (BOD) data for CY 2019.
Table 38. Biochemical Oxygen Demand (BOD) Monitoring Data, CY 2019
STATION
I.D NAME OF STATION
Biochemical Oxygen Demand (BOD)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Ave
ADA-3 Adams 3 - Sitio Anat (CLASS A) - <1 2 <1 3 - 1 <1 <1 <1 - 1
ADA-1 Poblacion, Adams, Ilocos Norte - <1 3 1 1 3 1 <1 <1 <1 - 1
PAG-1 Pancian, Pagudpud (Downstream) - <1 2 <1 3 - <1 1 <1 1 - 1
DUM-1 Brgy. San Isidro (Midstream) - 3 <1 <1 2 2 1 <1 <1 <1 - 1
BAN-2 Abang Falls - Stagnant Dry Dry 1 Dry <1 <1 1 <1 - 1
BAN-1 Caramuangin Bridge, Brgy. Lanao
(Downstream) - <1 2 2 4 3 1 <1 <1 <1 - 2
DENR Water Quality Guideline Value
for Class "B" Waters ≤5.0 mg/L
DENR Water Quality Guideline Value
for Class "A" Waters ≤3.0 mg/L
Statio
n
ID
Name of Station
Biochemical Oxygen Demand (BOD)
Feb Mar Apr Ma
y Jun Jul Aug Sep Oct Nov Dec Ave
ADA-
3
Anat - Adams, Ilocos Norte
(CLASS A) - - - - - <1 <1 2 <1 <1 2 1
ADA–
2 Cabacan – Adams, Ilocos Norte - 3 1 2 - 2 <1 2 <1 <1 <1 2
ADA–
1 Poblacion, Adams, Ilocos Norte - 1 2 4 - 2 <1 1 <1 <1 <1 2
PAG–
1 Pancian – Pagudpud, Ilocos Norte - 1 2 3 - 2 -- 1 <1 <1 <1 2
DUM–
1
San Isidro – Dumalneg, Ilocos
Norte 1 2 <1 3 - 2 <1 <1 2 <1 2 2
BAN–
2
Caramuangin – Bangui, Ilocos
Norte 2 2 2 2 - 1 <1 4 <1 <1 <1 2
BAN–
1
Abang Falls – Bangui, Ilocos
Norte 1 3 - - - 2 <1 <1 <1 <1 <1 1
DENR Water Quality Guideline Value
for Class "B" Waters ≤5.0 mg/L
DENR Water Quality Guideline Value
for Class "A" Waters ≤3.0 mg/L
REGIONAL STATE OF BROWN ENVIRONMENT 2019 56
Table 39 relays the Total Suspended Solids Monitoring Data for CY 2017. The tabulated data shows
that all monitoring stations except DUM-1 and BAN-1 monitoring station in the month of August met
the DENR water quality guideline (TSS ≤65 mg/L) for Class B water type. The high concentration
was attributed by natural surface run-off during the on-set of rainy seasons.
Table 39. Total Suspended Solids (TSS) Monitoring Data, CY 2017
Station
ID NAME OF STATION
PARAMETER
AVE TOTAL SUSPENDED SOLIDS
(TSS)
Jul Aug Sep Oct Nov
ADA-2 Poblacion, Adams, Ilocos
Norte 2 2 1 1 1 1
ADA-1 Cabacan – Adams, Ilocos
Norte 6 9 2 1 2 4
DUM-1 Brgy. San Isidro (Midstream) 8 286 7 1 1 61
BAN-2 Abang Falls 1 6 2 1 4 3
BAN-1 Caramuangin Bridge, Brgy.
Lanao (Downstream) 18 140 27 4 2 38
DENR Water Quality Guideline
Value for Class "B" Waters ≤65.0 mg/L
Table 40 shows that all monitoring data met the DENR water quality guideline (TSS ≤65 mg/L) for
Class B water type and (TSS ≤50 mg/L) for Class A water type.
Table 40. Total Suspended Solids (TSS) Monitoring Data, CY 2018 Statio
n
ID
Name of Station Total Suspended Solids (TSS)
Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ave
ADA-
3
Anat - Adams, Ilocos Norte
(CLASS A) 4 1 2 2 - 1 <1 2 <1 10 2 3
ADA–
2 Cabacan – Adams, Ilocos Norte - 1 1 <1 - <1 2 <1 <1 1 3 1
ADA–
1 Poblacion, Adams, Ilocos Norte - 1 <1 <1 - 2 6 2 <1 10 6 3
PAG–
1 Pancian – Pagudpud, Ilocos Norte - 1.0 3 10 - - -- 2 <1 3 5 4
DUM–
1
San Isidro – Dumalneg, Ilocos
Norte 4 1 2 2 - 9 8 1 <1 5 5 4
BAN–
2
Caramuangin – Bangui, Ilocos
Norte 12 9 6 2 - 3 6 2 4 27 14 9
BAN–
1
Abang Falls – Bangui, Ilocos
Norte 1 1 - - - 3 1 1 <1 <1 2 1
DENR Water Quality Guideline Value
for Class "B" Waters ≤65.0 mg/L
DENR Water Quality Guideline Value
for Class "A" Waters ≤50.0 mg/L
REGIONAL STATE OF BROWN ENVIRONMENT 2019 57
(-) no sampling in June due to continuous heavy rainfall and typhoons
Table 41 shows the annual monitoring data for the six (6) established monitoring stations of the Bolo
River System. As gleaned from the table, the Total Suspended Solids results revealed that station
ADA-1 in May and DUM-1 in March and May did not meet the DENR Water Quality Guideline of
≤65 mg/L for Class B water classification.
Table 41. Total Suspended Solids (TSS) Monitoring Data, CY 2019
STATION
I.D NAME OF STATION
Total Suspended Solids (TSS)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Ave
ADA-3 Adams 3 - Sitio Anat (CLASS
A) - <2 3 <2 14 - 12 6 <2 3 7 5
ADA-1 Poblacion, Adams, Ilocos Norte - <2 3 <2 80 4 15 2 4 <2 8 12
PAG-1 Pancian, Pagudpud
(Downstream) - 3 2 <2 <2 5 35 19 2 5 4 8
DUM-1 Brgy. San Isidro (Midstream) - <2 123 39 139 14 3 6 <2 <2 7 33
BAN-2 Abang Falls - Stagnan
t Dry Dry 2 Dry 17 56 8 <2 <2 14
BAN-1
Caramuangin Bridge, Brgy.
Lanao
(Downstream)
- 7 8 <2 29 <2 39 <2 3 4 5 10
DENR Water Quality Guideline Value
for Class "B" Waters ≤65.0 mg/L
DENR Water Quality Guideline Value
for Class "A" Waters ≤50.0 mg/L
A.5. Color
Based on the tabulated annual monitoring data for CY 2019 in Table 42, all six (6) stations met the
maximum Color requirement of 50 TCU. The Color values range from 5 TCU to 20 TCU.
Table 42. Color Monitoring Data, CY 2019
STATION
I.D NAME OF STATION
Color
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Ave
ADA-3 Adams 3 - Sitio Anat (CLASS
A) - 5 5 5 15 - <10 <10 <10 5 <5 6
ADA-1 Poblacion, Adams, Ilocos
Norte - 5 5 <5 5 <5 <10 <10 <10 5 <5 5
PAG-1 Pancian, Pagudpud
(Downstream) - 5 5 <5 5 <5 <10 <10 <10 5 <5 5
DUM-1 Brgy. San Isidro (Midstream) - 5 5 5 5 5 <10 <10 <10 5 5 6
BAN-2 Abang Falls - Stagnant Dry Dry 20 Dry <10 <10 <10 5 <5 8
BAN-1
Caramuangin Bridge, Brgy.
Lanao
(Downstream)
- 5 10 <5 5 <5 <10 <10 <10 5 <5 6
DENR Water Quality Guideline Value
for Class "B" Waters
≤50 TCU
REGIONAL STATE OF BROWN ENVIRONMENT 2019 58
DENR Water Quality Guideline Value
for Class "A" Waters
≤50 TCU
A.6. Temperature
Tables 43 shows the annual Temperature Monitoring Data for Class B Water Type. Most of the
monitoring stations did not meet the DENR Water Quality Guideline (26-30°C) for temperature that is
due to the high elevation of the stations causing the relatively cold ambient results for the said
parameter.
Table 43. Temperature Monitoring Data, CY 2019
STATION
I.D NAME OF STATION
Temperature
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Ave
ADA-3 Adams 3 - Sitio Anat (CLASS A) - 25.09 - 23.86 29.74 26.4 34.62 25.98 25.18 - - 27.27
ADA-1 Poblacion, Adams, Ilocos Norte - 29.1 - 25.02 31.01 27.54 33.26 26.23 23.45 - - 27.94
PAG-1 Pancian, Pagudpud (Downstream) - 24.73 - 25.32 32.04 27.85 33.13 25.06 28.24 - - 28.05
DUM-1 Brgy. San Isidro (Midstream) - 27.38 - 26.68 32.1 - 24.67 25.44 27.85 - - 27.35
BAN-2 Abang Falls - Stagnant Dry Dry 34.21 Dry 24.87 26.89 28.07 - - 28.51
BAN-1
Caramuangin Bridge, Brgy.
Lanao
(Downstream)
- 30.17 - 26.85 31.2 29.15 32.6 24.2 23.49 - - 28.24
DENR Water Quality Guideline Value
for Class "B" Waters 26-30°C
DENR Water Quality Guideline Value
for Class "A" Waters 26-30°C
A.7. Nitrate
Table 44 shows the annual monitoring data for the six (6) established monitoring stations of the Bolo
River System. As gleaned from the table, the Nitrate results revealed that all monitoring station met
the DENR Water Quality Guideline of ≤7 mg/L for Class B water classification.
Table 44. Nitrate Monitoring Data, CY 2019
STATION
I.D NAME OF STATION
Nitrate
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Ave
ADA-3 Adams 3 - Sitio Anat (CLASS A) - 0.06 0.06 <0.05 0.37 - 0.13 0.12 0.07 <0.0
5
<0.0
5 0.10
ADA-1 Poblacion, Adams, Ilocos Norte - <0.05 0.06 <0.05 0.14 0.07 0.14 0.16 0.1 <0.0
5 0.10 0.09
PAG-1 Pancian, Pagudpud (Downstream) - 0.23 0.16 0 0.17 0.28 0.11 0.09 0.06 0.17 0.24 0.15
DUM-1 Brgy. San Isidro (Midstream) - <0.05 0.11 0.06 0.13 0.06 0.38 0.12 0.08 0.05 0.07 0.11
BAN-2 Abang Falls - Stagna
nt Dry Dry - Dry 0.17 0.12 0.07
<0.0
5 0.09 0.10
BAN-1 Caramuangin Bridge, Brgy. Lanao
(Downstream) - 0.11 0.16 0.09 - 0.09 0.31 0.32 0.3 0.1 0.39 0.21
REGIONAL STATE OF BROWN ENVIRONMENT 2019 59
DENR Water Quality Guideline Value
for Class "B" Waters ≤7 mg/L
DENR Water Quality Guideline Value
for Class "A" Waters ≤7 mg/L
A.8. Phosphate
Table 45 shows the annual monitoring data for CY 2019 in the the six (6) established monitoring
stations of the Bolo River System. As gleaned from the table, the Phosphate results revealed that all
monitoring station met the DENR Water Quality Guideline of ≤0.5 mg/L for Class B water
classification.
Table 45. Phosphate Monitoring Data, CY 2019
STATION
I.D NAME OF STATION
Phosphate
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Ave
ADA-3 Adams 3 - Sitio Anat (CLASS A) - <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 0.06 <0.0
5
0.07 <0.05
ADA-1 Poblacion, Adams, Ilocos Norte - <0.05 <0.05 <0.05 0.06 <0.05 <0.05 <0.05 <0.05 <0.0
5
<0.0
5 <0.05
PAG-1 Pancian, Pagudpud
(Downstream) - <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05
<0.0
5
<0.0
5 <0.05
DUM-1 Brgy. San Isidro (Midstream) - <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 0.05 <0.0
5 <0.05
BAN-2 Abang Falls - Stagnan
t Dry Dry 0.05 Dry <0.05 <0.05 <0.05
<0.0
5
0.05 <0.05
BAN-1
Caramuangin Bridge, Brgy.
Lanao
(Downstream)
- <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05
<0.0
5
<0.0
5 <0.05
DENR Water Quality Guideline Value
for Class "B" Waters
≤0.5 mg/L
DENR Water Quality Guideline Value
for Class "A" Waters
≤0.5 mg/L
A.9. Chloride
Table 46 shows the annual CY 2019 monitoring data for the six (6) established monitoring stations of
the Bolo River System. As gleaned from the table, the Chloride results revealed that all monitoring
station met the DENR Water Quality Guideline of ≤250 mg/L for Class B water classification.
Table 46. Chloride Monitoring Data, CY 2019
STATION
I.D NAME OF STATION
Chloride
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Ave
ADA-3 Adams 3 - Sitio Anat (CLASS A) - <10 <10 <10 <10 - <10 <10 <10 <10 <10 <10
ADA-1 Poblacion, Adams, Ilocos Norte - <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10
PAG-1 Pancian, Pagudpud (Downstream) - <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10
DUM-1 Brgy. San Isidro (Midstream) - <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10
BAN-2 Abang Falls - Stagnan
t Dry Dry <10 Dry <10 <10 <10 <10 <10 <10
BAN-1 Caramuangin Bridge, Brgy. Lanao
(Downstream) - <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 <10
REGIONAL STATE OF BROWN ENVIRONMENT 2019 60
DENR Water Quality Guideline Value
for Class "B" Waters
≤250.0 mg/L
DENR Water Quality Guideline Value
for Class "A" Waters
≤250.0 mg/L
REGIONAL STATE OF BROWN ENVIRONMENT 2019 61
A.10. Total Coliform
Table 47 illustrates the Monitoring Data of Total Coliform for CY 2017. As seen from the table, most
of the monitoring stations did not meet the DENR Water Quality Guideline for Class B water type.
Table 47. Total Coliform Monitoring Data, CY 2017
Station
ID NAME OF STATION
PARAMETER
GEOMEAN TOTAL COLIFORM
Jul Aug Sep Oct Nov
ADA-2 Poblacion, Adams, Ilocos Norte 800 24000 330 800 800 1323
ADA-1 Cabacan – Adams, Ilocos Norte 300 24000 3000 8000 1100 2856
DUM-1 Brgy. San Isidro (Midstream) 1100 700 3500 1100 5000 1715
BAN-2 Abang Falls 700 3000 900 1300 2200 1401
BAN-1 Caramuangin Bridge, Brgy.
Lanao (Downstream) 200 360 500 5000 500 618
DENR Water Quality Guideline
Value for Class "B" Waters ≤1000 MPN/100mL
Table 48 shows the annual Monitoring Data of Total Coliform for CY 2018. As seen from the table,
the annual geometric mean of all monitoring stations except at stations ADA-3 and PAG-1 meet the
DENR water quality guideline of 1000 MPN/ 100 mL for Class B and Class A water classification.
Table 48. Total Coliform Monitoring Data, CY 2018
(-) no sampling in June due to continuous heavy rainfall and typhoons
Station
ID Name of Station
Total Coliform
Feb Ma
r Apr May
Ju
n Jul Aug Sep Oct Nov Dec Geomean
ADA-3 Anat - Adams, Ilocos
Norte (CLASS A) - - - - - 460 490 9200
1700
0 330 <1.8 1634
ADA–
2
Cabacan – Adams,
Ilocos Norte - 790 48 2100 - 1300 460 790 3500 330 1700 749
ADA–
1
Poblacion, Adams,
Ilocos Norte - 130 330 3500 - 1300 790 2400 2400 79 23 490
PAG–
1
Pancian – Pagudpud,
Ilocos Norte - 330
130
0
3500
0 - - -- 9200 2400 170 1700 1919
DUM–
1
San Isidro – Dumalneg,
Ilocos Norte 170 130 110
1600
00 - 140 490 230 230 1100 2400 572
BAN–
2
Caramuangin – Bangui,
Ilocos Norte 170 170 33 490 - 330 700 490 1300 490 1700 377
BAN–
1
Abang Falls – Bangui,
Ilocos Norte 400 330 - - - 1300 940 790 790 790 <1.8 697
DENR Water Quality Guideline
Value for Class "B" Waters ≤1000 MPN/ 100mL
DENR Water Quality Guideline
Value for Class "A" Waters ≤1000 MPN/ 100mL
REGIONAL STATE OF BROWN ENVIRONMENT 2019 62
A.11. Fecal Coliform
Table 49 is the Fecal Coliform Monitoring Data for CY 2017. The recorded Geometric mean of the
Fecal Coliform parameter in CY 2017 indicated that all of the monitoring stations exceeded the their
respective DENR Water Quality Guideline Value for Class A and Class B water classification.
Table 49. Fecal Coliform Monitoring Data, CY 2017
Station ID NAME OF STATION
PARAMETER
GEOMEAN FECAL COLIFORM
Jul Aug Sep Oct Nov
ADA-2 Poblacion, Adams, Ilocos Norte 800 2800 170 800 500 686
ADA-1 Cabacan – Adams, Ilocos Norte 300 24000 3000 5000 800 2440
DUM-1 Brgy. San Isidro (Midstream) 1100 700 2200 800 1700 1182
BAN-2 Abang Falls 700 3000 300 800 1100 889
BAN-1 Caramuangin Bridge, Brgy. Lanao
(Downstream) 200 340 170 3000 220 377
DENR Water Quality Guideline Value for Class
"B" Waters ≤100 MPN/ 100mL
DENR Water Quality Guideline Value for Class
"A" Waters ≤1.1 MPN/ 100mL
Results of the Fecal Coliform annual monitoring data is presented in Table 50, the Geometric mean of
the results for CY 2018 showed that three (3) out of the six (6) monitoring stations met the DENR
Water Quality Guideline for Class B waterbody of 100 MPN/ 100mL while station ADA-3 exceeded
the Water Quality Guideline Value of <1.1 MPN/ 100mL sample.
Table 50. Fecal Coliform Monitoring Data, CY 2018
(-) no sampling in June due to continuous heavy rainfall and typhoons
Statio
n
ID
Name of Station
Fecal Coliform
Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Geomea
n
ADA-
3
Anat - Adams, Ilocos
Norte (CLASS A) - - - - - 130 130 140 11000 330 <1.8 158
ADA–
2
Cabacan – Adams,
Ilocos Norte - 220 7.8 610 - 2 49 280 1100 230 1700 132
ADA–
1
Poblacion, Adams,
Ilocos Norte - 79 33 400 - 46 280 280 94 49 23 90
PAG–
1
Pancian – Pagudpud,
Ilocos Norte - 170 110 9400 - - -- 350 2400 170 1700 637
DUM–
1
San Isidro –
Dumalneg, Ilocos
Norte
170 79 7.8 17000 - 13 94 79 79 490 2400 166
BAN–
2
Caramuangin –
Bangui, Ilocos Norte 79 22 4.5 110 - 4 330 230 1300 58 1700 90
BAN–
1
Abang Falls – Bangui,
Ilocos Norte 240 130 - - - 2 490 280 130 490 <1.8 75
DENR Water Quality
Guideline Value for Class "B"
Water Classification
≤100 MPN/ 100mL
DENR Water Quality
Guideline Value for Class "A"
Waters Classification
≤1.1 MPN/ 100mL
REGIONAL STATE OF BROWN ENVIRONMENT 2019 63
Table 51 shows the annual monitoring data for the six (6) established monitoring stations of the Bolo
River System in CY 2019. As gleaned from the table, the Fecal Coliform results showed that most of
the stations for the monthly monitoring and the quarterly geometric mean did not meet their respective
Water Quality Guideline for Class A and B water classification.
Table 51. Fecal Coliform Monitoring Data, CY 2019
STATIO
N
I.D
NAME OF STATION
Fecal Coliform
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Geomea
n
ADA-3 Adams 3 - Sitio Anat
(CLASS A) - 230 17 <8 78 13 <8 <8 <8 <8 <8 16
ADA-1 Poblacion, Adams, Ilocos
Norte - 490 790 1300
2400
0 49 4600 1700 130 230 230 708
PAG-1 Pancian, Pagudpud
(Downstream) - 2400 790 330 5400 46 2400 24000 79 230 230 720
DUM-1 Brgy. San Isidro
(Midstream) - 490 490 490 5400 23 790 2400 140
220
0 490 578
BAN-2 Abang Falls - Stagnan
t Dry Dry 5400 Dry 4600 5400 490 490 2200 2034
BAN-1
Caramuangin Bridge, Brgy.
Lanao
(Downstream)
- 330 140 230 5400 230 2400 2400 79 120
0 1200 622
DENR Water Quality Guideline
Value
for Class "B" Water Classification
≤100 MPN/ 100mL
DENR Water Quality Guideline
Value
for Class "A" Waters Classification
≤1.1 MPN/ 100mL
REGIONAL STATE OF BROWN ENVIRONMENT 2019 64
A.12. Trace Metals
Table 52 shows the results of the heavy metal analysis on various sampling points of the Bolo River System in CY 2018 and CY 2019.
Table 52. Heavy Metal Monitoring Data for CY 2018 and CY 2019
Parameters
STATIONS DENR
Water
Quality
Guideline
for Class
A and B
Waters
(µg/L)
Pancian-
Pagudpud
Sitio Anat-
Adams
Poblacion, Adams,
Ilocos Norte
Caramuangin-
Bangui
Isidro-
Dumalneg
CY 2018 CY 2019 CY 2018 CY 2019 CY 2018 CY 2019 CY 2018 CY 2019 CY 2018 CY 2019
Arsenic <0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED) 0.05
Cadmium <0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED) 0.01
Chromium <0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED) 0.05
Copper <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 No
Guideline
Lead <0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED) 0.05
Zinc <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 No
Guideline
Mercury <0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED) 0.002
REGIONAL STATE OF BROWN ENVIRONMENT 2019 65
A.13. Inorganic Compounds
Table 53 shows the results of inorganic compounds monitoring data for CY 2018 and CY 2019.
Table 53. Inorganic Compounds Monitoring Data for CY 2018 and CY 2019
A.14. OrganoChlorine Pesticides (OCPs)
Table 54 shows the OrganoChlorine Pesticide Monitoring Data for CY 2018 and CY 2019. Results of
baseline monitoring reflected very low concentrations (not detected), below the DENR water quality
guideline for Class A and Class B waterbody. Results do not pose risk to the environment.
Table 54. OrganoChlorine Pesticide Monitoring Data, CY 2018 and 2019
Parameters
MONITORING STATIONS DENR Water
Quality Guideline
for Class A and B
Water (µg/L) Pancian-
Pagudpud
Sitio
Anat-
Adams
Poblacion,
Adams,
Ilocos
Norte
Caramuagin-
Bangui
Isidro-
Dumalneg
4,4’-DDD ND ND ND ND ND No Guideline
4,4’-DDE ND ND ND ND ND No Guideline
4,4’-DDT ND ND ND ND ND No Guideline
Aldrin ND ND ND ND ND No Guideline
Alpha-BHC ND ND ND ND ND No Guideline
Alpha Chlordane ND ND ND ND ND No Guideline
Beta-BHC ND ND ND ND ND No Guideline
Chlordane (tech) ND ND ND ND ND No Guideline
Delta-BHC ND ND ND ND ND No Guideline
Dieldrin ND ND ND ND ND No Guideline
Endosulfan I ND ND ND ND ND No Guideline
Endosulfan II ND ND ND ND ND No Guideline
Endosulfan
Sulfate ND ND ND ND ND No Guideline
Endrin ND ND ND ND ND No Guideline
Endrin Aldehyde ND ND ND ND ND No Guideline
Paramete
rs
MONITORING STATIONS DENR Water
Quality
Guideline for
Class A and B
Waters (µg/L)
Pancian-
Pagudpud
Sitio Anat-
Adams
Brgy. Poblacion,
Adams
Caramuangin-
Bangui
Isidro-
Dumalneg
CY
2018
CY
2019
CY
2018
CY
2019
CY
2018
CY
2019
CY
2018
CY
2019
CY
2018
CY
2019
Ammonia 0.008 0.008 1.3 1.1 <0.003 <0.00
3 0.07 0.06 0.04 0.04 No Guideline
Cyanide,
Free <0.02 <0.02
<0.0
2 <0.02 <0.05 <0.02 0.04
<0.0
2
<0.0
2 <0.02 0.05
Nitrate 1.7 1.2 2.1 1.3 <0.000
2
<0.00
02 1.1 0.9 0.1 0.1 10.0
Phosphate 0.1 0.1 0.2 0.2 <0.007 <0.00
7 0.09 0.08 0.07 0.06 0.4
REGIONAL STATE OF BROWN ENVIRONMENT 2019 66
Eldrin Ketone ND ND ND ND ND No Guideline
Gamma-BHC
(Lindane) ND ND ND ND ND No Guideline
Heptachlor ND ND ND ND ND No Guideline
Heptachlor
Epoxide ND ND ND ND ND No Guideline
Methoxychlor ND ND ND ND ND No Guideline
Toxaphene ND ND ND ND ND No Guideline
A.15. OrganoPhosphorous (OPPs) Compounds
Table 55 shows the OrganoPhosphorous Compounds Monitoring Data for CY 2018 and CY 2019.
Results of baseline monitoring reflected very low concentrations (not detected), below the DENR
water quality guideline for Class A and Class B waterbody. Results do not pose risk to the
environment.
Table 55. OrganoChlorine Pesticide Test Monitoring Data, CY 2018 & CY 2019
Parameters STATIONS DENR Water
Quality Guideline
for Class A and B
Waters (µg/L)
Pancian-
Pagudpud
Sitio
Anat-
Adams
Poblacion,
Adams,
Ilocos Norte
Caramuagin
-
Bangui
Isidro-
Dumalneg
Azinphosmethyl ND ND ND ND ND No Guideline
Bolstar ND ND ND ND ND No Guideline
Chlorpyrifos ND ND ND ND ND No Guideline
Coumaphos ND ND ND ND ND No Guideline
Demeton-O ND ND ND ND ND No Guideline
Diazinon ND ND ND ND ND No Guideline
Dichlorvos ND ND ND ND ND No Guideline
Disulfoton ND ND ND ND ND No Guideline
Ethoprop ND ND ND ND ND No Guideline
Fenchlorphos ND ND ND ND ND No Guideline
Fensulfothion ND ND ND ND ND No Guideline
Fenthion ND ND ND ND ND No Guideline
Malathion ND ND ND ND ND No Guideline
Merphos ND ND ND ND ND No Guideline
Methyl parathion ND ND ND ND ND No Guideline
Mervinphos ND ND ND ND ND No Guideline
Phorate ND ND ND ND ND No Guideline
Tetrachlorvinphos ND ND ND ND ND No Guideline
Tokuthion ND ND ND ND ND No Guideline
Trichloronate ND ND ND ND ND No Guideline
REGIONAL STATE OF BROWN ENVIRONMENT 2019 67
B. OPERATIONALIZATION OF WATER QUALITY MANAGEMENT AREAS
B.1. SINOCALAN-DAGUPAN RIVER SYSTEM – WATER QUALITY MANAGEMENT
AREA (SDRS-WQMA)
The Sinocalan-Dagupan River System (SDRS) Water Quality Management Area (WQMA) was
officially designated pursuant with DENR Administrative Order No. 11 series of 2014 dated
November 23, 2011. The Sinocalan-Dagupan River System Water Quality Management Area (SDRS-
WQMA) covers the Municipalities of Binalonan, Sta. Barbara, Mangaldan, Malasiqui, Calasiao and
Binmaley; and the Cities of Urdaneta, San Carlos and Dagupan.
The Sinocalan-Dagupan River System Water Quality Management Area falls inside geographical
coordinates of 120º15’06.9” and 120º37’54.2º east longitudes and 15º50’54.1º and 16º05’54.3” north
latitude. The whole WQMA has a total area of 90,238 hectares. Drainage area is approximately 720
square kilometers with a length of 65 km and varying width of 8.14 meters to 198 meters.
There are three hundred and forty-three (343) barangays within the SDRS with a total population of
1,044,161 based on the 2015 Survey of the National Statistics Office.
The headwater of Sinocalan/Dagupan River system originates from one of the mountainous areas of
San Manuel, Pangasinan. Its upstream location is in Binalonan, Pangasinan, in the north east, while
the downstream portions are in Dagupan City and Binmaley, in the north west.
The annual averages for the parameters pH, DO, BOD and TSS revealed that the water quality from
CY 2014 to CY 2019 met their respective DENR Water Quality Guidelines for Class C water
classification.
The CY 2019 annual averages and monthly monitoring data for the parameters Color, Nitrate,
Phosphate and Chloride revealed that all monitoring stations met their respective DENR Water
Quality Guideline for Class C water classification.
The comparison of the geometric mean for Fecal Coliform from all monitoring stations of the SDRS
WQMA from CY 2014 to CY 2018 recorded that the Geometric mean of the results of monitoring for
CY 2014 showed that all eleven (11) monitoring stations exceeded the DENR Water Quality
Guideline for Class C waters of 200 MPN/100ml. In CY 2015, the results of Fecal Coliform shows
that all monitoring stations did not meet the water quality guideline, although the annual geometric
mean of the monitoring displayed better results as compared to the results obtained in CY 2014, the
monitoring results in CY 2016 revealed that all monitoring stations still did not meet the DENR Water
Quality Guideline with ten (10) monitoring stations showing an increase in Fecal Coliform
concentration, with only the NAG-4 Batan station in NRS showing an improvement in water quality.
The annual Geometric mean for CY 2017, CY 2018 and CY 2019 recorded that all stations exceeded
the DENR Water Quality Guideline.
For the parameters Heavy Metals and Inorganic Compounds for CY 2018 and CY 2019, the
monitoring data revealed that all representative stations met and are far within their corresponding
DENR Water Quality Guidelines. Moreover, the presence or traces of OrganoChlorine Pesticides
(OCPs) and OrganoPhosphorous Pesticides (OPPs) were not detected for all representative stations of
the SDRS-WQMA.
Using the available data on domestic, industrial, livestock and non-point sources of pollution of the
SDRS-WQMA from the Approved Comprehensive Land Use Plan (CLUP) of Dagupan City from CY
2015-2025 and data from the Environmental Monitoring and Enforcement Division (EMED) and
Clearance and Permitting Division (CPD) of EMB-I, pollution load estimation of the water body was
assessed for the parameters BOD, Total Nitrate, Total Phosphorous and Chemical Oxygen Demand
and Total Suspended Solids.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 68
The pollution load estimate is categorized based on the source (Domestic, Industrial, Livestock and
Non-Point Sources (NPS). Based on the total pollution load estimation of the Dagupan River,
domestic sources yield the highest source of pollution load for the parameters BOD, TN, TP and TSS
since majority of the area traversed by the Dagupan River and its triburtaries is classified as
residential zones while the Industrial Sources have the least amount of pollution contribution among
the Pollution Source Categories. No data was recorded for the Livestock Source since there are no
identified piggery farms, poultry farms or even grazing animals within the coverage of the Dagupan
River.
To effectively protect, preserve and sustain the SDRS-WQMA, EMB-I prioritized the adoption of the
esteros, creeks and tributaries within the Sinocalan-Dagupan River System. EMB-I has an on-going
assessment of four (4) adopted esteros namely: Arellano Creek, Herrero Creek, Mariposa Creek and
Jose Calimlim Creek which are located within the Central Business District of Dagupan City. These
creeks finally drain into Dagupan River, which is downstream of the Sinocalan Dagupan River
System Water Quality Management Area. A total of thirteen (13) rivers and three (3) creeks were
adopted within the SDRS-WQMA.
WATER QUALITY MONITORING OF THE SINOCALAN-DAGUPAN RIVER SYSTEM
In compliance and as prescribed by DENR Department Administrative Order No. 8 series of 2016
entitled Water Quality Guidelines and General Effluent Standards, Regional Offices are required to
monitor the ten (10) Primary Parameter as indicated in Table 3 of the said Order and Section 6.3.a
states that Annual Average of at least ten (10) data set for the primary parameters except Fecal
Coliform, namely: Biochemical Oxygen Demand (BOD), Chloride, Color, Dissolved Oxygen (DO),
Nitrate as NO3 -N, Potential of Hydrogen (pH), Phosphate, Temperature and Total Suspended Solids
and section 6.3.c states that Geometric Mean of at least Three data set per quarter for Fecal Coliform.
Thus, this region reduced the monitoring stations from twenty-two (22) to seventeen (17) monitoring
stations. Table 27 presents the twenty-two (22) monitoring stations of the SDRS-WQMA. Highlighted
in red are the stations that were no longer continued to be monitored as of January 2019 due to the
above-stated reasons.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 69
Table 56. Monitoring Stations
Stations Locations City/Municipality GPS Location
Latitude Longitude
BIN – 1 CP Primicias Bridge Binalonan 16º04’66.4”N 120º59’67.4”E
SIN – 1 Macalong Bridge Urdaneta City 15º97’65.3”N 120º57’09.5”E
SIN – 2 Mabanogbog Bridge Urdaneta City 15º97’48.1”N 120º55’29.7”E
SIN – 3 Cafloresan Bridge Urdaneta City 15º97’84.8”N 120º54’17.3”E
PIN – 1 Pinmalodpod Urdaneta City 15º98’18.6”N 120º53’54.0”E
VIL – 1 Villamil Bridge Urdaneta City 15º97’60.1”N 120º49’45.4”E
SIN – 4 Banaoang Bridge Santa Barbara 15º99’59.9”N 120º43’05.3”E
SIN – 5 Maramba Bridge Santa Barbara 16º00’53.4”N 120º40’26.6”E
MAL – 1 Bogtong Bridge Malasiqui 15º94’87.7”N 120º40’13.2”E
SN – 1 San Juan Bridge San Carlos City 15º91’54.9”N 120º33’01.6”E
CAL – 1 Dinalaoan Bridge Calasiao 16º00’52.4”N 120º34’94.7”E
CAL – 2 San Vicente Bridge Calasiao 16º00’91.1”N 120º34’82.9”E
DW – 1 Dawel Bridge Dagupan City 16º05’90.6”N 120º33’97.5”E
DAG – 1 Magsaysay Bridge Dagupan City 16º04’18.2”N 120º34’11.7”E
DAG – 2 Pantal – Calmay Dagupan City 16º04’53.3”N 120º32’73.9”E
BY – 1 Manat Bridge Binmaley 16º01’15.8”N 120º28’38.6”E
BY – 2 Gayaman Bridge Binmaley 16º01’13.4”N 120º30’26.6”E
BY – 3 Gumapos Bridge Binmaley 16º02’74.7”N 120º27’01.9”E
MANG – 1 Paldakit Bridge Mangaldan 16º04’85.8”N 120º37’06.2”E
SIN-1A Dilan-Paurido Urdaneta City 15º58'36.14"N 120º34'59.72"E
SC-2 Calomboyan San Carlos City 16º2'43.53"N 120º21'30.68"E
DAG-3 Bayaoas Dagupan City 15º56'46.95"N 120º18'21.09"E
The results of the water quality monitoring of the seventeen (17) monitoring stations in the Sinocalan
Dagupan River System Water Quality Management Area for 2019 are to wit:
B.1.1. Potential of Hydrogen (pH)
Table 57 shows the pH annual Monitoring Data for CY 2019. The monitoring data for CY 2019
revealed that all except SC-1 station in May and SIN-3, VIL-1, SIN-1A, SIN-4, SIN-5, MAL-1,SC-1,
DW-1, DAG-2, DAG-3, BY-1, BY-3 and MANG-1 in June met the DENR Water Quality Guideline
of 6.5-9.0 pH range. Moreover, the annual average for all stations met the DENR Water Quality
Guideline. Figure 23 shows the graphical presentation of Potential of Hydrogen (pH) data for CY
2019. VIL-1 and SC-1 stations were not monitored in the First Quarter, VIL-1 and MAL-1 in the
Second Quarter due to stagnancy of the monitoring station.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 70
Table 57. pH Monitoring Data, CY 2019
Station
ID Name of Location
Poetential of Hydrogen (pH)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Min Max Ave.
BIN – 1 CP Primicias - Binalonan 8.0 8.2 8 7.90 8.10 8.75 7.90 7.80 7.40 7.00 7.39 7.0 8.75 7.86
SIN – 1 Macalong – Urdaneta City 7.6 7.8 7.7 7.70 7.70 7.90 7.70 7.50 7.40 7.10 7.58 7.1 7.90 7.61
SIN – 3 Caflorescan – Urdaneta
City 7.6 7.7 7.7 7.60 7.70 10.35 7.50 7.60 7.10 7.20 6.66 6.7 10.35 7.70
VIL – 1 Villamil– Urdaneta City 7.6 - 7.7 7.50 - 11.03 7.60 7.60 7.20 7.30 7.44 7.2 11.03 7.89
SIN-1A Dilan-Paurido, Urdaneta
City 7.9 7.7 7.9 7.90 7.80 9.24 7.60 7.60 7.40 7.20 7.47 7.2 9.24 7.79
SIN – 4 Banaoang – Sta. Barbara 8.1 8.2 8 8.20 8.30 10.46 7.70 7.60 7.20 7.50 7.43 7.2 10.46 8.06
SIN – 5 Maramba – Sta. Barbara 8.1 8.3 8.2 8.30 8.50 11.02 7.70 7.60 7.10 7.60 7.34 7.1 11.02 8.16
MAL –
1 Bogtong – Malasiqui 7.9 8 8 7.70 - 10.30 7.60 7.60 6.60 7.50 -- 6.6 10.30 7.91
SC – 1 San Juan – San Carlos
City 8.4 8.2 - 8.40 9.10 9.38 8.00 7.60 6.60 7.60 7.40 6.6 9.38 8.07
SC-2 Calomboyan-San Carlos
City 8.0 7.6 7.7 7.70 7.90 8.96 7.40 7.40 6.70 7.60 7.16 6.7 8.96 7.65
CAL –
1 Dinalaoan - Calasiao 8.2 8.1 7.7 8.20 8.20 8.05 7.50 7.40 6.80 7.40 7.09 6.8 8.20 7.69
DW – 1 Dawel – Dagupan City 7.8 7.6 7.8 7.80 8.40 9.68 8.00 7.40 7.40 7.20 6.61 6.6 9.68 7.79
DAG –
2
Magsaysay – Dagupan
City 8.0 8 8 8.00 8.30 10.41 8.00 7.70 7.30 7.80 7.50 7.3 10.41 8.09
DAG-3 Bayaoas-Dagupan City 7.5 7.7 7.7 7.60 8.00 10.71 7.60 7.60 7.20 7.70 7.32 7.2 10.71 7.88
BY – 1 Manat-Binmaley 7.8 7.4 7.5 7.50 7.70 11.38 7.50 7.50 7.50 7.80 7.28 7.3 11.38 7.90
BY – 3 Gumapos – Binmaley 7.8 7.5 7.5 7.60 8.00 10.47 7.30 7.40 7.60 7.70 7.36 7.3 10.47 7.84
MANG
– 1 Paldakit – Mangaldan 7.9 7.6 - 7.80 7.90 9.38 7.50 7.50 7.10 8.10 7.44 7.1 9.38 7.82
DENR Water Quality Guideline
Value for Class " C " Water
Classification
6.5-9.0
REGIONAL STATE OF BROWN ENVIRONMENT 2019 71
(-) stagnant river bed
(--) Water quality monitoring was not conducted
REGIONAL STATE OF BROWN ENVIRONMENT 2019 72
Table 58 shows the comparison of six (6) years annual averages for pH from CY 2014 to CY 2019.
As gleaned from the table, the six years annual averages for pH revealed that all stations met the
DENR Water Quality Guideline of 6.5- 9.0 pH ranges. Figure 24 shows the graphical presentation of
the six (6) years annual averages for pH.
Table 58. Comparison of six (6) years annual averages for Potential of Hydrogen (pH)
Stations Locations
Potential of Hydrogen (pH)
CY 2014 CY
2015
CY
2016 CY 2017
CY
2018
CY
2019
BIN – 1 Primicias - Binalonan 7.5 7.1 6.9 7.5 7.9 7.86
SIN – 1 Macalong – Urdaneta City 7.2 7.0 6.3 7.5 7.3 7.61
SIN – 2 Mabanogbog – Urdaneta
City 7.4 7.5 6.3 7.5 7.3 -
SIN – 3 Caflorescan – Urdaneta City 6.9 7.0 6.6 7.5 7.3 7.70
PIN – 1 Pinmaludpod- Urdaneta City 7.3 7.1 6.5 7.6 7.0
VIL – 1 Villamil– Urdaneta City 7.2 7.6 6.8 7.8 7.2 7.89
SIN-1A Dilan-Paurido, Urdaneta
City 7.4 7.4 7.5 7.79
SIN – 4 Banaoang – Sta. Barbara 7.0 7.2 6.5 7.9 7.8 8.06
SIN – 5 Maramba – Sta. Barbara 7.1 6.9 6.5 7.9 7.6 8.16
MAL – 1 Bogtong – Malasiqui 7.4 7.0 6.4 - 7.4 7.91
SC – 1 San Juan – San Carlos City 7.3 7.2 6.3 7.8 7.5 8.07
SC-2 Calomboyan-San Carlos City 7.5 7.5 7.4 7.65
CAL – 1 Dinalaoan - Calasiao 7.5 7.4 6.6 7.2 7.4 7.69
CAL – 2 San Vicente – Calasiao 7.5 7.0 6.7 7.9 7.5 -
DW – 1 Dawel – Dagupan City 8.0 6.8 7.1 7.6 7.7 7.79
DAG – 1 Calmay – Dagupan City 7.6 6.8 6.6 7.8 7.7 -
DAG – 2 Magsaysay – Dagupan City 7.1 6.5 6.9 8.0 7.6 8.09
DAG-3 Bayaoas-Dagupan City 7.7 7.7 7.4 7.88
BY – 1 Manat-Binmaley 7.3 7.0 6.8 7.7 7.5 7.90
BY – 2 Gayaman – Binmaley 6.9 7.0 6.9 7.9 7.8 -
BY – 3 Gumapos – Binmaley 7.0 6.8 6.7 7.8 8.0 7.84
MANG –
1 Paldakit – Mangaldan 7.6 7.3 6.6 8.0 7.4 7.82
DENR Water Quality Guideline
for Class "C" Water Classification 6.5-9.0
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 73
B.1.2. Dissolved Oxygen
Table 59 shows the Dissolved Oxygen Monitoring Data for CY 2019. The monitoring data for CY
2019 revealed that all except stations DW-1, DAG-3, BY-1, BY-3 AND MANG-1 in February;
station BY-3 in March; stations VIL-1, MAL-1 and MANG-1 in April; stations SIN-1, SIN-3, and
SC-2 in May; stations SIN-1, SIN-3, MAL-1 and SC-2 in June; stations MAL-1, CAL -1, DAG-3,
BY-1, BY-3 AND MANG-1 in July; stations SC-2, CAL-1, DAG-3 and MANG-1 in August; station
DW-1 in September; stations VIL-1, CAL-1 and DAG-3 in October and; stations VIL-1, SIN-1A, SC-
2, CAL-1, DW-1, BY-1 and MANG-1 in November met the DENR Minimum Requirement of 5
mg/L. Moreover, the annual average for all except stations VIL-1 and MANG-1 met the DENR Water
Quality Guideline.
Table 59. Dissolved Oxygen Monitoring Data, CY 2019
Station
ID
Name of
Location
Dissolved Oxygen
Ja
n
Fe
b
Ma
r
Ap
r
Ma
y Jun Jul
Au
g
Se
p
Oc
t Nov
Mi
n
M
ax Ave.
BIN – 1 CP Primicias -
Binalonan 9.4 7.8 7.5 8 8 7 7.5 7.6 9.2 6.7 7.32 6.7 9.4 7.8
SIN – 1 Macalong –
Urdaneta City 6.7 5.8 6.5 5 4 4 6.0 6.2 7.0 6.4 5.89 4 7.0 5.8
SIN – 3 Caflorescan –
Urdaneta City 6.6 6.2 6.2 5 4 4 5 7.1 6.0 6.6 6.74 4
6.7
4 5.8
VIL – 1 Villamil–
Urdaneta City 5.9 - 5 3 - 5 5 5.8 6.6 3.8 3.17 3 6.6 4.8
SIN-1A Dilan-Paurido,
Urdaneta City 8.0 5.2 7.4 7 6 6 6.6 7.1 7.8 7.5 3.82
3.8
2 8.0 6.6
SIN – 4 Banaoang –
Sta. Barbara 8.6 7.7 7.3 7 7 7 6.6 6.8 7.2 6.7 6.43
6.4
3 8.6 7.1
SIN – 5 Maramba –
Sta. Barbara 8.4 7.8 8.6 8 8 7 7.4 7.1 7.0 7.0 7.03
7.0
3 8.6 7.5
MAL –
1
Bogtong –
Malasiqui 6.9 6.5 6.5 4 - 4 4.4 5.7 6.2 5.5 - 4 6.9 5.6
SC – 1
San Juan –
San Carlos
City
9.6 5.7 - 6 8 8 7.5 5.8 5.7 6.4 5.43 5.4
3 9.6 6.8
SC-2
Calomboyan-
San Carlos
City
9.1 6.6 6.8 5 3 4 5.6 4.6 5.8 5.2 3.60 3 9.1 5.4
CAL –
1
Dinalaoan -
Calasiao 8.3 7.1 5.4 7 10 6 3.4 4.2 5.7 3.6 3.80 3.4 8.3 5.8
DW – 1 Dawel –
Dagupan City 6.1 3.7 6.6 5 8 5 5.9 5.2 4.5 5.3 3.97 4.5 8 5.3
DAG –
2
Magsaysay –
Dagupan City 7.4 6.9 7.2 6 19 6 5.9 6.4 6.3 6.5 6.70 5.9 19 7.6
DAG-3 Bayaoas-
Dagupan City 5.3 4.9 5.1 5 17 5 3.6 4.9 5.1 4.7 5.08 3.6 17 5.9
BY – 1 Manat-
Binmaley 6.9 4.5 5.1 5 8 5 3.4 5.2 6.9 6.3 4.16 3.4 6.9 5.5
BY – 3 Gumapos –
Binmaley 6.0 4.3 4.8 5 6 5 4.3 5.8 6.6 6.3 6.54 4.3 6.6 5.5
MANG
– 1
Paldakit –
Mangaldan 6.4 4.1 - 3 6 3 2.6 4.1 3.8 8.1 4.36 2.6 8.1 4.6
DENR Water Quality
Guideline Value for Class
" C " Water
Classification
5 mg/L
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 74
(-) Dried-up river bed
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 75
Table 60 shows the comparison of six (6) years annual averages for DO from CY 2014 to CY 2019.
Table 60. Comparison of six (6) years annual average data for Dissolved Oxygen
Stations Locations
Dissolved Oxygen
CY 2014 CY
2015
CY
2016
CY
2017
CY
2018
CY
2019
BIN – 1 Primicias - Binalonan 7 7 7 6.9 7.3 7.8
SIN – 1 Macalong – Urdaneta City 6 7 6 4.4 6.2 5.8
SIN – 2 Mabanogbog – Urdaneta City 5 6 5 4.6 5.5 -
SIN – 3 Caflorescan – Urdaneta City 5 7 5 4.7 6.0 5.8
PIN – 1 Pinmaludpod- Urdaneta City 7 7 7 5.3 5.8 -
VIL – 1 Villamil– Urdaneta City 6 6 6 5.5 5.7 4.8
SIN-1A Dilan-Paurido, Urdaneta City - - 7.0 6.4 7.3 6.6
SIN – 4 Banaoang – Sta. Barbara 6 7 6 6.8 6.9 7.1
SIN – 5 Maramba – Sta. Barbara 7 6 7 7.0 7.2 7.5
MAL – 1 Bogtong – Malasiqui 4 5 5 s 5.8 5.6
SC – 1 San Juan – San Carlos City 6 7 7 6.5 5.5 6.8
SC-2 Calomboyan-San Carlos City - - 6 5.5 5.0 5.4
CAL – 1 Dinalaoan - Calasiao 5 7 6 2.2 5.2 5.8
CAL – 2 San Vicente – Calasiao 6 7 7 6.2 5.7 -
DW – 1 Dawel – Dagupan City 4 5 5 5.3 6.1 5.3
DAG – 1 Calmay – Dagupan City 5 7 5 5.3 6.2 -
DAG – 2 Magsaysay – Dagupan City 5 7 6 6.2 6.4 7.6
DAG-3 Bayaoas-Dagupan City - - 6 5.2 5.0 5.9
BY – 1 Manat-Binmaley 5 6 7 5.6 5.6 5.5
BY – 2 Gayaman – Binmaley 6 7 7 6.0 6.4 -
BY – 3 Gumapos – Binmaley 5 7 6 5.6 7.1 5.5
MANG – 1 Paldakit – Mangaldan 4 6 6 4.7 4.5 4.6
DENR Water Quality Guideline
for Class "C" Water Classification 6.5-9.0
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 76
B.1.3. Biochemical Oxygen Demand
Table 61 shows the annual Biochemical Oxygen Demand Monitoring Data for CY 2019. The
monitoring data for CY 2019 revealed that all except stations VIL-1, MAL-1, SC-1, DW-1, BY-3 and
MANG-1 in April; stations SIN-3 and MANG-1 in June; stations SIN-3, VIL-1, MAL-1, SC-2, CAL-
1, DAG-3, BY-1 and MANG-1 in July; station MANG-1 in September; stations VIL-1 and CAL-1 in
October met the DENR Water Quality Guideline of 7 mg/L. Moreover, the annual average for all
except station MANG-1 met the DENR Water Quality Guideline.
Table 61. Biochemical Oxygen Demand Monitoring Data, CY 2019
Station
ID
Name of
Location
Biochemical Oxygen Demand
Ja
n
Fe
b
M
ar
Ap
r
M
ay Jun Jul Aug Sep Oct
Mi
n
Ma
x
Av
e.
BIN –
1
CP Primicias -
Binalonan 1 1 2 1 - 3 1 1 1 2
1 3 2
SIN – 1 Macalong –
Urdaneta City 3 2 2 7 - 4 4 2 2 2
2 7 3
SIN – 3 Caflorescan –
Urdaneta City 4 1 4 5 - 8 13 2 7 2
1 13 5
VIL – 1 Villamil–
Urdaneta City 5 - 4 14 - 5 12 1 5 11
1 14 7
SIN-1A
Dilan-
Paurido,
Urdaneta City
2 2 3 4 - 4 3 1 2 2
1 4 3
SIN – 4 Banaoang –
Sta. Barbara 2 1 1 3 - 2 2 1 3 2
1 3 2
SIN – 5 Maramba –
Sta. Barbara 2 1 1 3 - 1 3 1 2 2
1 3 2
MAL –
1
Bogtong –
Malasiqui 2 1 1 9 - 2 8 2 2 3
1 9 3
SC – 1
San Juan –
San Carlos
City
4 5 - 7 - 5 4 3 4 3
3 7 4
SC-2
Calomboyan-
San Carlos
City
3 1 2 6 - 3 12 1 2 5
1 12 4
CAL –
1
Dinalaoan -
Calasiao 2 2 2 3 - 3 13 1 3 10
1 13 4
DW – 1 Dawel –
Dagupan City 5 3 4 11 - 5 4 2 3 4
2 11 5
DAG –
2
Magsaysay –
Dagupan City 2 3 2 4 - 2 3 1 3 1
1 3 2
DAG-3 Bayaoas-
Dagupan City 7 1 2 6 - 6 13 1 4 4
1 13 5
BY – 1 Manat-
Binmaley 5 2 4 8 - 7 12 2 3 5
2 12 5
BY – 3 Gumapos –
Binmaley 4 1 5 9 - 5 2 3 2 3
1 9 4
MANG
– 1
Paldakit –
Mangaldan 7 1 - 18 - 11 47 3 10 7
1 47 13
DENR Water Quality
Guideline for Class " C
" Water Classification
7
(-) Dried-up river bed
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 77
(--) Water quality monitoring was not conducted
REGIONAL STATE OF BROWN ENVIRONMENT 2019 78
Table 62 shows the comparison of six (6) years annual averages for Biochemical Oxygen Demand from CY 2014 to CY 2019. Figure 28 shows the graphical
presentation of the six (6) years annual averages for BOD.
Table 62. Comparison of six (6) years annual average data for Biochemical Oxygen Demand
Stations Locations Biochemical Oxygen Demand
CY 2014 CY 2015 CY 2016 CY 2017 CY 2018 CY 2019
BIN – 1 Primicias - Binalonan 3 4 2 4 3 2
SIN – 1 Macalong – Urdaneta City 4 5 3 12 4 3
SIN – 2 Mabanogbog – Urdaneta City 5 5 4 8 4 5
SIN – 3 Caflorescan – Urdaneta City 4 5 4 9 3 7
PIN – 1 Pinmaludpod- Urdaneta City 5 4 2 4 3 3
VIL – 1 Villamil– Urdaneta City 5 7 4 6 6 2
SIN-1A Dilan-Paurido, Urdaneta City - - 2 3 3 2
SIN – 4 Banaoang – Sta. Barbara 4 3 4 3 4 3
SIN – 5 Maramba – Sta. Barbara 4 6 2 3 3 4
MAL – 1 Bogtong – Malasiqui 5 6 9 - 3 4
SC – 1 San Juan – San Carlos City 8 5 5 5 7 4
SC-2 Calomboyan-San Carlos City - - 5 9 4 5
CAL – 1 Dinalaoan - Calasiao 8 9 5 15 5 2
CAL – 2 San Vicente – Calasiao 6 4 2 4 4 5
DW – 1 Dawel – Dagupan City 4 4 9 6 3 5
DAG – 1 Calmay – Dagupan City 3 4 5 4 3 4
DAG – 2 Magsaysay – Dagupan City 3 5 2 3 5 13
DAG-3 Bayaoas-Dagupan City - - 8 3 4 2
BY – 1 Manat-Binmaley 7 5 3 4 7 3
BY – 2 Gayaman – Binmaley 4 6 4 5 5 5
BY – 3 Gumapos – Binmaley 6 3 4 5 3 7
MANG – 1 Paldakit – Mangaldan 5 8 5 5 9 3
DENR Water Quality Guideline
for Class "C" Water Classification 7
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 79
B.1.4. Color
Based on the tabulated annual monitoring data for CY 2019 in Table 63, all stations met the
maximum Color requirement of 75 TCU. The Color values range from 5 TCU to 15 TCU.
Table 63. Color Monitoring Data, CY 2019
Station
ID
Name of
Location
Color
Ja
n
Fe
b
Ma
r
Ap
r
Ma
y Jun Jul
Au
g Sep Oct Nov
Mi
n
Ma
x
Av
e.
BIN –
1
CP Primicias
- Binalonan 5 5 5 5 5 5 5 5 5 5 5 5 5 5
SIN – 1 Macalong –
Urdaneta City 10 15 10 10 15 20 15 15 20 10 20 10 20 15
SIN – 3 Caflorescan –
Urdaneta City 10 10 10 10 15 15 20 15 15 10 20 10 20 14
VIL –
1
Villamil–
Urdaneta City 5 - 20 30 - 30 20 20 25 20 25 5 30 22
SIN-
1A
Dilan-
Paurido,
Urdaneta City
5 10 10 10 15 30 15 10 20 10 10 5 30 13
SIN – 4 Banaoang –
Sta. Barbara 5 5 10 10 5 15 15 10 10 5 10 5 15 9
SIN – 5 Maramba –
Sta. Barbara 5 5 5 5 5 15 15 10 10 56 10 5 56 13
MAL –
1
Bogtong –
Malasiqui 15 15 15 40 - 25 10 20 25 10 - 10 40 19
SC – 1
San Juan –
San Carlos
City
15 15 - 20 20 25 20 25 30 25 25 15 25 22
SC-2
Calomboyan-
San Carlos
City
20 20 15 20 15 15 10 25 25 25 30 15 20 20
CAL –
1
Dinalaoan -
Calasiao 5 15 15 10 10 20 20 20 25 15 15 5 20 15
DW –
1
Dawel –
Dagupan City 5 10 15 5 5 5 10 15 20 10 15 5 20 10
DAG –
2
Magsaysay –
Dagupan City 5 5 5 10 5 20 15 15 15 10 10 5 15 10
DAG-3 Bayaoas-
Dagupan City 10 10 15 15 10 15 15 20 20 20 20 10 20 15
BY – 1 Manat-
Binmaley 5 10 10 10 10 10 10 20 15 15 20 5 20 12
BY – 3 Gumapos –
Binmaley 5 10 10 15 10 10 10 25 10 15 15 5 25 12
MANG
– 1
Paldakit –
Mangaldan 20 25 - 50 25 25 31 30 30 30 40 20 50 31
DENR Water Quality
Guideline for Class "
C " Water
Classification
75
(-) Water quality monitoring was not conducted
(--) Water quality monitoring was not conduct
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 80
B.1.5. Temperature
Tables 64 shows the Temperature monitoring data for Class C Water Classification. Several
monitoring stations did not meet the DENR Water Quality Guideline (26-30°C) for temperature that is
due to the intense climatic temperature of the stations causing the relatively warm ambient results for
the said parameter.
Table 64. Temperature Annual Monitoring Data, CY 2019
Station
ID
Name of
Location
Temperature
Jan Feb Mar Apr May Jun Jul Aug Sep
Oct
-
Dec
Min Max Ave
.
BIN – 1 CP Primicias -
Binalonan
24.
82
31.9
4
28.7
3
33.3
8
29.7
2
32.5
9
29.1
7
31.4
9
25.5
0 --
24.8
2
33.3
8
29.
70
SIN – 1 Macalong –
Urdaneta City
25.
7
31.9
4 28.3
30.9
5
30.2
4
31.9
7
28.9
5
29.6
2
25.6
7
-- 25.7
31.9
7
29.
26
SIN – 3 Caflorescan –
Urdaneta City
24.
54
27.8
8
27.7
8
31.2
3
29.5
9 32
28.6
8
30.0
6
25.6
5
-- 24.5
4 32
28.
60
VIL – 1 Villamil–
Urdaneta City
24.
54
28.5
2
28.5
9
30.1
6
31.2
9
31.0
6
29.4
5
29.6
0
25.7
2
-- 24.5
4
31.2
9
28.
77
SIN-1A Dilan-Paurido,
Urdaneta City
27.
24 -
28.4
5
31.0
4 -
31.4
5
29.4
4
29.6
9
25.9
0
-- 25.9
0
31.4
5
29.
03
SIN – 4 Banaoang –
Sta. Barbara
27.
74
29.9
5
29.6
5
30.4
5
31.7
8
31.3
1
29.7
7
29.2
3
26.0
5
-- 27.7
4
31.7
8
29.
55
SIN – 5 Maramba –
Sta. Barbara -
28.2
2
29.0
9
31.2
6 30.1
31.1
2
29.9
7
29.9
1
26.1
9
-- 26.1
9
31.2
6
29.
48
MAL –
1
Bogtong –
Malasiqui
28.
88
28.0
7
28.6
9
31.3
9 -
32.7
2
30.4
4
29.3
4
26.4
8
-- 26.4
8
32.7
2
29.
50
SC – 1
San Juan –
San Carlos
City
27.
42
28.1
5 -
30.8
5
30.3
9
32.1
2
30.8
2
29.9
5
26.9
1
-- 27.4
2
32.1
2 29.
58
SC-2
Calomboyan-
San Carlos
City
29.
49
28.8
8 32.8 31.4
34.2
5
32.7
2
30.8
0
29.7
8
26.6
2
-- 26.6
2 32.8 30.
75
CAL –
1
Dinalaoan -
Calasiao
27.
65
29.5
2
30.9
6 -
33.2
6
32.9
4
30.5
3
29.6
1
26.5
1
-- 26.5
1
33.2
6
30.
12
DW – 1 Dawel –
Dagupan City
26.
61
25.5
1 -
30.3
6
32.3
4
31.1
3
29.2
0
27.5
9
26.7
9
-- 25.5
1
32.3
4
28.
69
DAG –
2
Magsaysay –
Dagupan City
27.
86
25.6
9
30.2
9
31.1
5
32.4
1 30
30.6
7
29.1
7
27.2
3
-- 25.6
9
32.4
1
29.
39
DAG-3 Bayaoas-
Dagupan City
27.
07
25.4
6
32.5
5
31.1
9
30.5
6
31.6
5
30.6
8
28.8
7
26.9
3
-- 25.4
6
32.5
5
29.
44
BY – 1 Manat-
Binmaley
27.
66
26.2
9
30.3
2
30.9
2
30.5
3
31.4
3
30.5
0
29.1
7
26.5
4
-- 26.2
9
31.4
3
29.
26
BY – 3 Gumapos –
Binmaley
28.
39
26.7
1
32.1
5
31.7
5 33.5
33.0
3
32.0
4
29.9
2
26.6
3
-- 26.6
3 33.5
30.
46
MANG
– 1
Paldakit –
Mangaldan
27.
37
28.3
2
32.0
3
30.9
4 32.5
33.1
3
31.6
6
29.3
2
26.3
5
-- 26.3
5
33.1
3
30.
18
DENR Water Quality
Guideline for Class " C "
Water Classification
26-31
(-) Water quality monitoring was not conducted
(--) Water quality monitoring was not conducted due to breakdown of the water quality checke
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 81
B.1.6. Nitrate
Table 65 shows the Nitrate monitoring data for CY 2019. As gleaned from the table, the Nitrate
results revealed that all except station BIN-1 met the DENR Water Quality Guideline of ≤7 mg/L for
Class C water classification. Figure 31 shows the Graphical Presentation of Nitrate Data for the CY
2019.
Table 65. Nitrate Monitoring Data, CY 2019
Station
ID
Name of
Location
Nitrate
Ja
n
Fe
b
Ma
r
Ap
r
Ma
y Jun Jul
Au
g Sep Oct Nov
Mi
n Max
Ave
.
BIN – 1 CP Primicias -
Binalonan 1 1 2
0.2
4
0.4
2
0.5
6 0.37
0.3
3 0.27 93 - -
0.2
4 93 10
SIN – 1 Macalong –
Urdaneta City 3 2 2
0.2
2
0.2
0
0.4
6 0.17
0.3
6 0.30 0.46 - -
0.1
7 3 1
SIN – 3 Caflorescan –
Urdaneta City 4 1 4
0.5
4
0.4
7
0.6
6 0.30
0.7
0 0.52 0.70 - -
0.3
0 4 1
VIL – 1 Villamil–
Urdaneta City 5 - 4
0.4
9 -
0.3
7 0.33
0.4
2 0.19 0.77 0.26
0.1
9 5 1
SIN-1A Dilan-Paurido,
Urdaneta City 2 2 3
0.1
9
0.1
4
0.2
8 0.12
0.4
0 0.25 0.33 - -
0.1
2 3 1
SIN – 4 Banaoang –
Sta. Barbara 2 1 1
0.3
2
0.2
7
0.4
1 0.32
0.5
3 0.37 0.52 - -
0.2
7 2 1
SIN – 5 Maramba –
Sta. Barbara 2 1 1
0.3
3
0.2
5
0.4
0 0.37
0.5
3 0.39 0.56 - -
0.2
5 2 1
MAL –
1
Bogtong –
Malasiqui 2 1 1
0.1
7 -
0.2
4 0.24
0.4
7 0.12 0.69 - -
0.1
2 2 1
SC – 1 San Juan – San
Carlos City 4 5 -
0.0
5
0.0
5
0.0
7 0.05
0.2
3 0.09 0.09 0.10
0.0
5 5 1
SC-2
Calomboyan-
San Carlos
City
3 1 2 0.1
2
0.1
4
0.0
8 0.20
0.2
8 0.10 0.15 - -
0.0
8 3 1
CAL –
1
Dinalaoan -
Calasiao 2 2 2
0.3
5
0.1
9
0.3
0 0.08
0.2
9 0.15 0.28 - -
0.0
8 2 1
DW – 1 Dawel –
Dagupan City 5 3 4
0.0
5
0.0
5
0.0
5 0.05
0.1
4 0.06 0.05 - -
0.0
5 5 1
DAG –
2
Magsaysay –
Dagupan City 2 3 2
0.2
8
0.2
8
0.3
7 0.22
0.4
1 0.21 0.49 - -
0.2
1 3 1
DAG-3 Bayaoas-
Dagupan City 7 1 2
0.0
5
0.0
5
0.0
5 0.05
0.1
6 0.14 0.05 - -
0.0
5 7 1
BY – 1 Manat-
Binmaley 5 2 4
0.0
5
0.0
5
0.0
5 0.05
0.0
6 0.16 0.05 - -
0.0
5 5 1
BY – 3 Gumapos –
Binmaley 4 1 5
0.0
5
0.0
5
0.0
6 0.05
0.0
5 0.24 0.05 - -
0.0
5 5 1
MANG
– 1
Paldakit –
Mangaldan 7 1 -
0.0
5
0.0
5
0.0
5 0.05
0.0
7 0.08 0.05 0.05
0.0
5 7 1
DENR Water Quality
Guideline Value for
Class " C " Water
Classification
7 mg/L
(-) Water quality monitoring was not conducted
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 82
B.1.7. Phosphate
Table 66 shows the Phosphate Monitoring Data for CY 2019. As gleaned from the Table, the
Phosphate results revealed that all except station VIL-1 in April and stations SC-1, SC-2, CAL-1, BY-
1 and BY-3 met the DENR Water Quality Guideline of ≤0.5 mg/L for Class C water classification.
Figure 32 shows the Graphical Presentation of Phosphate Monitoring Data for CY 2019.
Table 66. Phosphate Monitoring Data, CY 2019
Station
ID
Name of
Location
Phosphate
Ja
n
Fe
b
Ma
r
Ap
r
Ma
y Jun Jul Aug Sep Oct
Mi
n Max
Ave
.
BIN – 1 CP Primicias -
Binalonan
0.0
5
0.0
5
0.0
5
0.0
5
0.0
5 0.05 0.05 0.05 0.05 0.05
0.0
5 0.05
0.05
SIN – 1 Macalong –
Urdaneta City
0.0
8 0.1
0.0
8
0.1
6
0.1
4 0.16 0.16 0.07 0.11 0.09
0.0
7 0.16
0.12
SIN – 3 Caflorescan –
Urdaneta City
0.1
0
0.1
5
0.1
1
0.2
2
0.2
5 0.28 0.07 0.10 0.13 0.14
0.1
0 0.28
0.16
VIL – 1 Villamil–
Urdaneta City
0.1
4 --
0.1
8
0.7
1 -- 0.34 0.10 0.16 0.20 0.41
0.1
0 0.71
0.28
SIN-1A Dilan-Paurido,
Urdaneta City
0.0
7 0.2
0.0
5
0.0
7
0.2
1 0.16 0.23 0.17 0.22 0.07
0.0
5 0.23
0.15
SIN – 4 Banaoang – Sta.
Barbara
0.0
6
0.0
8
0.0
5
0.1
2
0.0
9 0.11 0.07 0.06 0.08 0.06
0.0
5 0.11
0.08
SIN – 5 Maramba – Sta.
Barbara
0.0
6
0.0
8
0.0
5
0.1
1
0.1
0 0.11 0.05 0.06 0.09 0.07
0.0
5 0.11
0.08
MAL –
1
Bogtong –
Malasiqui
0.1
1
0.1
2 0.1
0.2
3 -- 0.14 0.13 0.16 0.14 0.25
0.1
0 0.25
0.15
SC – 1 San Juan – San
Carlos City
0.1
0
0.1
8 --
0.2
8
0.2
6 8.30 0.22 0.23 0.17 0.27
0.1
0 8.30
1.11
SC-2 Calomboyan-
San Carlos City
0.2
6
0.2
7
0.3
6
0.4
3
0.4
5 7.50 0.13 0.24 0.17 0.30
0.1
3 7.50
1.01
CAL – 1 Dinalaoan -
Calasiao
0.0
6
0.1
3
0.0
9
0.1
2
0.1
2 7.80 0.19 0.21 0.15 0.23
0.1
2 7.80
0.91
DW – 1 Dawel –
Dagupan City
0.0
9
0.1
1
0.1
1
0.0
6
0.0
5 0.05 0.05 0.14 0.20 0.16
0.0
5 0.20
0.10
DAG –
2
Magsaysay –
Dagupan City
0.1
4 0.1
0.0
6
0.1
3
0.1
1 0.14 0.08 0.09 0.11 0.10
0.1
0 0.14
0.11
DAG-3 Bayaoas-
Dagupan City
0.1
4
0.1
2
0.1
4
0.1
4
0.1
5 0.14 0.13 0.23 0.16 0.25
0.1
2 0.25
0.16
BY – 1 Manat-
Binmaley
0.1
4
0.2
5
0.2
4
0.2
1
0.1
7 7.70 0.17 0.30 0.15 0.27
0.1
5 7.70
0.96
BY – 3 Gumapos –
Binmaley
0.1
2
0.2
2
0.1
9
0.1
9
0.2
2 7.80 0.15 0.25 0.09 0.20
0.1
2 7.80
0.94
MANG
– 1
Paldakit –
Mangaldan
0.1
9
0.2
1 --
0.2
2
0.2
0 0.17 0.15 0.20 0.20 0.26
0.1
5 0.26
0.20
DENR Water Quality
Guideline for Class " C "
Water Classification
0.5
(-) Water quality monitoring was not conducted
(--) Stagnant river bed
REGIONAL STATE OF BROWN ENVIRONMENT 2019 83
B.1.8. Chloride
Table 67 shows the Chloride Monitoring Data for CY 2019. As gleaned from the Table, the Chloride results revealed that most downstream monitoring
stations did not meet the DENR Water Quality Guideline of ≤350 mg/L for Class C water classification due to saltwater intrusion.
Table 67. Chloride Monitoring Data, CY 2019
Station ID Name of Location Chloride
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Min Max Ave.
BIN – 1 CP Primicias - Binalonan 10 10 10 10 10 10 10 10 10 10 - - 10 10 10
SIN – 1 Macalong – Urdaneta City 10 20 10 10 10 19 10 10 10 10 - - 10 20 12
SIN – 3 Caflorescan – Urdaneta City 10 10 10 20 10 19 20 20 10 10 - - 10 20 14
VIL – 1 Villamil– Urdaneta City 148170 - 20 20 - 19 20 20 10 20 20 10 148170 16480
SIN-1A Dilan-Paurido, Urdaneta City 10 20 10 10 10 10 10 10 10 10 - - 10 20 11
SIN – 4 Banaoang – Sta. Barbara 10 20 10 10 10 10 20 20 10 10 - - 10 20 13
SIN – 5 Maramba – Sta. Barbara 10 10 10 10 10 19 10 10 10 10 - - 10 19 11
MAL – 1 Bogtong – Malasiqui 2 1 1 20 - 19 20 20 10 20 - - 1 20 13
SC – 1 San Juan – San Carlos City 4 5 - 2003 779 317 170 60 20 69 90 4 2003 352
SC-2 Calomboyan-San Carlos City 3 1 2 460296 483795 144211 4517 290 40 188 - - 1 483795 109334
CAL – 1 Dinalaoan - Calasiao 2 2 2 20 10 19 20 30 20 20 - - 2 20 15
DW – 1 Dawel – Dagupan City 5 3 4 423472 434803 465680 462357 14620 645 88584 - - 3 462357 189017
DAG – 2 Magsaysay – Dagupan City 2 3 2 2710 745 2346 910 10 10 20 - - 2 2710 676
DAG-3 Bayaoas-Dagupan City 7 1 2 82485 158734 53358 75477 595 250 34147 - - 1 158734 40506
BY – 1 Manat-Binmaley
5 2 4 349825 349067 141807 122962 13496 255 10021 - - 2 349825
98744
BY – 3 Gumapos – Binmaley
4 1 5 306864 315385 113926 94471 60 50 2811 - - 1 315385
83358
MANG – 1 Paldakit – Mangaldan
7 1 - 15957 134238 20430 15745 860 90 13114 10747 1 134238
21119
DENR Water Quality Guideline for Class
" C " Water Classification 350 mg/L
(-) Dried-up river bed
(--) Water quality monitoring was not conducted
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 84
B.1.9. Total Suspended Solids
Table 68 presents the Total Suspended Solids Monitoring Data for the CY 2019. All except station
SIN-5 met the DENR water quality guideline (TSS ≤80 mg/L) for the Total Suspended Solids
parameter. The high concentration was attributed by natural surface run-off during the on-set of rainy
seasons.
Table 68. Total Suspended Solids Monitoring Data, CY 2019
Station
ID
Name of
Location
Total Suspended Solids
Ja
n
Fe
b
Ma
r
Ap
r
Ma
y Jun Jul
Au
g Sep Oct Nov
Mi
n Max
Ave
.
BIN – 1 CP Primicias -
Binalonan 2 2 22 5 8 26 18 67 49 12 - - 2 67 21
SIN – 1 Macalong –
Urdaneta City 23 16 12 18 7 11 16 3 27 12 - - 3 27 15
SIN – 3 Caflorescan –
Urdaneta City 26 10 16 16 21 40 38 2 33 8 - - 2 40 21
VIL – 1 Villamil–
Urdaneta City 4 - 30 8 8 11 61 40 34 10 - - 4 61 23
SIN-1A Dilan-Paurido,
Urdaneta City 9 2 18 23 - 44 18 8 35 11 - - 2 44 19
SIN – 4 Banaoang –
Sta. Barbara 24 12 12 13 22 11 19 29 53 55 - - 11 55 25
SIN – 5 Maramba –
Sta. Barbara 24 10 19 15 8 20 15 28 112 40 - - 8 112 29
MAL –
1
Bogtong –
Malasiqui 17 12 22 13 - 27 12 7 46 24 - - 7 46 20
SC – 1 San Juan – San
Carlos City 44 43 - 25 7 8 18 5 15 3 - - 3 44 19
SC-2
Calomboyan-
San Carlos
City
9 8 9 10 15 7 10 8 25 5 - - 5 25 11
CAL –
1
Dinalaoan -
Calasiao 23 27 24 12 12 14 6 11 5 15 - - 5 27 15
DW – 1 Dawel –
Dagupan City 14 4 12 18 31 19 19 5 13 14 7 4 31 14
DAG –
2
Magsaysay –
Dagupan City 15 4 15 7 9 10 8 19 51 13 11 4 51 15
DAG-3 Bayaoas-
Dagupan City 4 5 4 9 28 7 6 4 12 17 4 4 28 9
BY – 1 Manat-
Binmaley 20 6 19 15 14 17 9 4 36 9 9 4 36 14
BY – 3 Gumapos –
Binmaley 24 18 19 14 19 18 11 8 70 9 6 6 70 20
MANG
– 1
Paldakit –
Mangaldan 13 9 - 11 31 5 8 5 9 11 7 5 31 11
DENR Water Quality
Guideline for Class " C
" Water Classification
80
(-) Dried-up river bed
(--) Water quality monitoring was not conducted
REGIONAL STATE OF BROWN ENVIRONMENT 2019 85
Table 69 shows the comparison of six (6) years annual average for Total Suspended Solids from CY 2014 to CY 2019. Based from the table all except
stations BIN-1, SIN-4 and SIN-5 in CY 2018 constantly meets the DENR Water Quality Guideline of 80 mg/L.
Table 69. Comparison of six (6) years annual average for Total Suspended Solids (TSS)
Stations Locations Total Suspended Solids (TSS)
CY 2014 CY 2015 CY 2016 CY 2017 CY 2018 CY 2019
BIN – 1 CP Primicias - Binalonan 14 9 8 18 110 21
SIN – 1 Macalong – Urdaneta City 27 17 14 8 27 15
SIN – 2 Mabanogbog – Urdaneta City 15 13 13 11 24 -
SIN – 3 Caflorescan – Urdaneta City 19 13 25 17 22 21
PIN – 1 Pinmaludpod- Urdaneta City 4 21 25 17 23 -
VIL – 1 Villamil– Urdaneta City 7 22 37 22 38 23
SIN-1A Dilan-Paurido, Urdaneta City - - 14 19 43 19
SIN – 4 Banaoang – Sta. Barbara 9 34 36 44 152 25
SIN – 5 Maramba – Sta. Barbara 14 33 37 38 166 29
MAL – 1 Bogtong – Malasiqui 17 66 39 - 65 20
SC – 1 San Juan – San Carlos City 10 21 39 27 29 19
SC-2 Calomboyan-San Carlos City - - 8 8 13 11
CAL – 1 Dinalaoan - Calasiao 8 29 25 4 18 15
CAL – 2 San Vicente – Calasiao 18 40 31 36 142 -
DW – 1 Dawel – Dagupan City 12 42 9 8 15 14
DAG – 1 Calmay – Dagupan City 12 49 8 10 11 -
DAG – 2 Magsaysay – Dagupan City 23 30 28 6 35 15
DAG-3 Bayaoas-Dagupan City - - 10 3 5 9
BY – 1 Manat-Binmaley 14 49 15 4 9 14
BY – 2 Gayaman – Binmaley 16 37 6 10 5 -
BY – 3 Gumapos – Binmaley 17 47 11 4 43 20
MANG – 1 Paldakit – Mangaldan 14 38 7 3 12 11
DENR Water Quality Guideline
for Class "C" Water Classification 80
REGIONAL STATE OF BROWN ENVIRONMENT 2019 86
B.1.10. Fecal Coliform
Table 70 presents the Fecal Coliform Monitoring Data for the CY 2019. All except stations DW-1 and BY-1 in January; station SC-2 in February, stations
SC-2, BY-1 and BY-3 in March; stations SC-2 and BY-1 in April and station SC-2 in June did not meet the DENR water quality guideline of 200 MPN/ 100
ml sample for the parameter Fecal Coliform.
Table 70. Fecal Coliform Monitoring Data, CY 2019
Station
ID
Name of
Location
Fecal Coliform
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Min Max GEOME
AN
BIN – 1 CP Primicias
- Binalonan 16,000 3500 5400 3500 17000 24000 54000 35000 35000 24000 16000 16000 3500 35000 15382
SIN – 1
Macalong –
Urdaneta
City
92000 9200
0 35,000
160,00
0 92,000 16,000
160,00
0
160,00
0 92,000
160,00
0 35,000 35,000 35000 160000 75104
SIN – 3
Caflorescan
– Urdaneta
City
16000
0 3,500 35,000 35,000 92,000 24,000
160,00
0 92,000 92,000
160,00
0 54,000 54,000 3500 160000 56029
VIL – 1
Villamil–
Urdaneta
City
35000 24,00
0 35,000 9,200 - 12,000 4,600 24,000 35,000 5,400 3,500 3,500 3500 35000 12121
SIN-1A
Dilan-
Paurido,
Urdaneta
City
330 - 160,00
0 54,000
160,00
0 92,000 24,000 35,000 24,000
160,00
0
160,00
0
160,00
0 330 160000 48466
SIN – 4 Banaoang –
Sta. Barbara
16000
0 9,200 3,500 5,400 17,000 3,500 16,000 24,000 24,000 16,000 460 460 460 160000 7812
SIN – 5 Maramba –
Sta. Barbara 35000 3,500 5,400 24,000 17,000 11,000 2,400 24,000 24,000 24,000 24,000 24,000 3500 35000 14001
MAL – 1 Bogtong –
Malasiqui 5400 5,400 1,300 1,300 - 5,400 54,000 24,000 35,000 9,200 - - 1300 35000 7833
SC – 1
San Juan –
San Carlos
City
3500 3,500 - 24,000 9,200 2,800 16,000 9,200 5,400 16,000 5,400 5,400 2800 16000 7227
SC-2 Calomboyan-
San Carlos
16000
0 2 23 46 280 79 24,000 28,000 3,500 3,500 5,400 5,400 2 160000 1041
REGIONAL STATE OF BROWN ENVIRONMENT 2019 87
City
CAL – 1 Dinalaoan -
Calasiao 24000
92,00
0 9,200 24,000 24,000 5,400 9,200 24,000 24,000 24,000 9,200 9,200 5400 92000 17221
DW – 1
Dawel –
Dagupan
City
79 1,300 230 3,500 5,400 2,400 4,600 14,000 16,000 92,000 17,000 17,000 79 92000 4191
DAG – 2
Magsaysay –
Dagupan
City
35000 24,00
0 2,400 24,000 92,000 160,000 17,000 54,000 16,000
160,00
0 9,200 9,200 2400 160000 26870
DAG-3
Bayaoas-
Dagupan
City
5400 790 2,400 3,500 9,200 3,500 5,400 11,000 5,400 24,000 4,600 4,600 790 24000 4892
BY – 1 Manat-
Binmaley 17 330 23 110 2,400 35,000 2,400 230 9,200 24,000 9,200 9,200 17 35000 1233
BY – 3 Gumapos –
Binmaley 2400 230 130 490 2,100 5,400 3,500 24,000
160,00
0
160,00
0 5,400 5,400 130 160000 4135
MANG
– 1
Paldakit –
Mangaldan 9200 3,500 - 9,200 5,400 16,000 9,200 2,400 24,000 92,000 3,500 3,500 3500 92000 8430
DENR Water Quality
Guideline for Class " C
" Water Classification
200
(-) Water quality monitoring was not conducted
(---) Inaccessibility of monitoring station
REGIONAL STATE OF BROWN ENVIRONMENT 2019 88
Table 71 presents the comparison of six (6) years annual geometric mean for Fecal Coliform from CY 2014 to CY 2019. As gleaned from the Table, all
stations did not meet the DENR Water Quality Guideline of 200 MPN/ 100 ml sample. However, in comparing the Monitoring Data from CY 2014 to CY
2019, the results show significant improvement in water quality in several monitoring stations.
Table 71. Comparison of six (6) years annual geometric mean for Fecal Coliform (FC)
Stations Locations Fecal Coliform
CY 2014 CY 2015 CY 2016 CY 2017 CY 2018 CY 2019
BIN – 1 CP Primicias - Binalonan 221,057 1,893 4,753 20,897 6358 15382
SIN – 1 Macalong – Urdaneta City 26,225 3,056 4,036 13,885 12905 75104
SIN – 2 Mabanogbog – Urdaneta City 364,096 2,605 4,502 17,418 15402 -
SIN – 3 Caflorescan – Urdaneta City 105,519 535 2,918 15,968 33649 56029
PIN – 1 Pinmaludpod- Urdaneta City 72,932 1,206 1,853 9,291 12908 -
VIL – 1 Villamil– Urdaneta City 106,908 1,013 3,004 5,209 10125 12121
SIN-1A Dilan-Paurido, Urdaneta City - - 5,395 17,400 7869 48466
SIN – 4 Banaoang – Sta. Barbara 78,816 19,856 4,058 9,455 3939 7812
SIN – 5 Maramba – Sta. Barbara 42,092 1,357 2,847 11,221 5096 14001
MAL – 1 Bogtong – Malasiqui 73,931 2,268 1,703 45 5627 7833
SC – 1 San Juan – San Carlos City 61,655 1,104 1,870 12,041 2644 7227
SC-2 Calomboyan-San Carlos City - - 1,061 5,568 453 1041
CAL – 1 Dinalaoan - Calasiao 59,924 779 2,709 872 6585 17221
CAL – 2 San Vicente – Calasiao 118,809 1,927 3,238 12,045 5284 -
DW – 1 Dawel – Dagupan City 80,065 1,999 1,921 6,228 1580 4191
DAG – 1 Calmay – Dagupan City 257,357 1,784 3,813 12,140 7637 -
DAG – 2 Magsaysay – Dagupan City 86,033 3,060 4,456 7,315 11773 26870
DAG-3 Bayaoas-Dagupan City - - 813 12,888 1692 4892
BY – 1 Manat-Binmaley 1,069 1,395 1,964 17,784 636 1233
BY – 2 Gayaman – Binmaley 7,339 1,142 2,389 7,227 384 -
BY – 3 Gumapos – Binmaley 312,149 4,106 3,028 1,872 1231 4135
MANG – 1 Paldakit – Mangaldan 35,004 1,068 2,545 10,016 767 8430
DENR Water Quality Guideline
for Class "C" Water Classification 200
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 89
Table 72 shows the annual averages of the ten (10) primary parameters monitored for CY 2019. Most
of the averages are within the DENR Water Quality Guideline for C waters except for the Annual
Average of the parameter Chloride and the Geomean for the parameter Fecal Coliform.
Table 72. ANNUAL AVERAGES OF THE TEN PRIMARY PARAMETERS, CY 2019
B.1.11. Trace Metals
Table 44 and Table 45 shows the results of the heavy metal analysis on various sampling points of the
SDRS WQMA in CY 2018 and CY 2019, respectively.
a. Arsenic (As)
The results of monitoring in the nine (9) established monitoring stations are far below the water
quality guideline of 0.02 mg/l Arsenic with values of less than 0.01 mg/L.
Station ID NAME OF
STATION
PARAMETERS
Averages Geometric
Mean
pH DO BOD NO3-
N PO4 Cl
- Color Temp TSS (FC)
BIN – 1 CP
Primicias 7.86 7.8 2 10 0.05 10 5 29.70 21 15382
SIN – 1 Macalong 7.61 5.8 3 1 0.12 12 15 29.26 15 75104
SIN – 3 Caflorescan 7.70 5.8 5 1 0.16 14 14 28.60 21 56029
VIL – 1 Villamil 7.89 4.8 7 1 0.28 16480 22 28.77 23 12121
SIN-1A Dilan-
Paurido 7.79 6.6 3 1 0.15 11 13 29.03 19 48466
SIN – 4 Banaoang 8.06 7.1 2 1 0.08 13 9 29.55 25 7812
SIN – 5 Maramba 8.16 7.5 2 1 0.08 11 13 29.48 29 14001
MAL – 1 Bogtong 7.91 5.6 3 1 0.15 13 19 29.50 20 7833
SC – 1 San Juan 8.07 6.8 4 1 1.11 352 22 29.58 19 7227
SC-2 Calomboyan 7.65 5.4 4 1 1.01 109334 20 30.75 11 1041
CAL – 1 Dinalaoan 7.69 5.8 4 1 0.91 15 15 30.12 15 17221
DW – 1 Dawel 7.79 5.3 5 1 0.10 189017 10 28.69 14 4191
DAG – 2 Magsaysay 8.09 7.6 2 1 0.11 676 10 29.39 15 26870
BY – 1 Manat 7.88 5.9 5 1 0.16 40506 15 29.44 9 4892
BY – 3 Gumapos 7.90 5.5 5 1 0.96 98744 12 29.26 14 1233
MANG –
1 Paldakit 7.84 5.5 4 1 0.94 83358 12 30.46 20 4135
DENR Water Quality
Guideline set for Class
“C” Water
Classification
6.0-
9.0
5.0
mg/L
7.0
mg/L
7.0
mg/L
0.5
mg/L 350 mg/L
75
TCU
25-31
°C
80.0
mg/L
200 MPN/
100 ml
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 90
b. Cadmium (Cd)
The potential sources of cadmium are from electroplating activities and batteries. The results of the
Heavy Metal Analysis for Cadmium recorded less than 0.006 mg/L which is higher the water quality
guideline of 0.005 mg/L.
c. Chromium (Cr)
Chromium compounds are primarily used in dyes and paints and in the tanning of leather. In the
automobile industry, hexavalent chromium is found in the primer paints for refinishing applications.
The nine (9) stations of the SDRS-WQMA that were tested for the presence of chromium obtained
results that are under the DENR water quality guideline standard of 0.05
d. Copper (Cu)
All five representative stations of the SDRS-WQMA attained a value of <0.01 mg/L. There is no
DENR water quality guideline for Copper.
e. Lead (Pb) Five stations that are representative of each LGUs were tested for Lead Concentration, all five stations
yielded values that are less than 0.05, the DENR Water Quality Guideline for Lead.
f. Mercury The representative stations all yielded <0.0001 mg/L mercury which is within the DENR water
quality guideline of 0.002 mg/L for Class C Water Classification.
g. Zinc(Zn)
The two (2) years monitoring data (CY 2018 and CY 2019) recorded <0.03 mg/L which is far below
the DENR Water Quality Guideline of 2 mg/L.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 91
Table 73. Heavy Metals Monitoring Data, CY 2018
Parameters STATIONS DENR
Water
Quality
Guideline
for Class
C Waters
(mg/L)
Paldakit CP
Primicias Macalong Maramba
San
Vicente San Juan Manat Dawel Calmay
Arsenic <0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
0.02
Cadmium <0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
0.01
Chromium <0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
0.05
Copper <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 0.02
Lead <0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
0.05
Zinc <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 2
Mercury <0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
0.002
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 92
Table 74. Heavy Metals Monitoring Data, CY 2019
Parameters STATIONS DENR
Water
Quality
Guideline
for Class
C Waters
(mg/L)
Paldakit CP
Primicias Macalong Maramba Dinalaoan San Juan Manat Dawel Bogtong
Arsenic <0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
0.02
Cadmium <0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
0.01
Chromium <0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
0.05
Copper <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 <0.01 0.02
Lead <0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
0.05
Zinc <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 <0.03 2
Mercury <0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
0.002
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 93
B.1.12. Inorganic Compounds
Table 75 and Table 76 shows the results of Inorganic Compounds Data for CY 2018 and CY 2019.
Improvement in the water quality for two stations exceeded in CY 2018. However, improvement in
water quality recorded that all the parameters met the water quality guideline values for Ammonia,
Cyanide Free, Nitrates and Phosphates.
Table 75. Inorganic Compounds Monitoring Data, CY 2018
Table 76. Inorganic Compounds Monitoring Data, CY 2019
Parameters MONITORING STATIONS DENR
Water
Quality
Guideline
for Class
C Waters
(mg/L)
Paldakit CP
Primicias Macalong Maramba
San
Vicente
San
Juan Manat Dawel Calmay
Ammonia 0.008 1.1 <0.003 0.04 0.04 0.008 1.3 <0.003 0.008 0.05
Cyanide,
Free <0.02 <0.02 <0.05 <0.02 <0.02 <0.02 <0.02 <0.05 <0.02 0.05
Nitrate 1.7 2.1 <0.0002 1.1 0.1 1.8 1.9 <0.0002 1.4 10.0
Phosphate 0.1 0.2 <0.007 0.09 0.07 0.1 0.1 <0.007 0.1 0.4
Parameters MONITORING STATIONS DENR
Water
Quality
Guideline
for Class
C Waters
(mg/L)
Paldakit CP
Primicias Macalong Maramba Dinalaoan
San
Juan Manat Dawel Bogtong
Ammonia <0.003 <0.003 <0.003 <0.003 <0.003 <0.003 <0.003 <0.003 <0.003 0.05
Cyanide,
Free <0.004 <0.004 <0.004 <0.004 <0.004 <0.004 <0.004 <0.004 <0.004 0.05
Nitrate 1.2 1.1 <0.0002 1.1 0.1 1.7 1.2 <0.0002 1.3 10.0
Phosphate 0.1 0.2 <0.007 0.08 0.06 0.1 0.1 <0.007 0.1 0.4
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 94
B.1.13. OrganoChlorine Pesticides (OCPs)
Table 77 and 78 shows the OrganoChlorine Pesticide Monitoring Data for CY 2018 and CY 2019.
Results of baseline monitoring reflected very low concentrations (not detected); within the DENR
water quality guideline for Class C waterbody. Results do not pose risk to the environment.
Parameters
MONITORING STATIONS
DENR
Water
Quality
Guideline
for Class C
Waters
(µg/L)
Palda
kit
CP
Primici
as
Macalo
ng
Maram
ba
San
Vicente
San
Jua
n
Man
at
Daw
el
Calma
y
4,4’-DDD ND ND ND ND ND ND ND ND ND No
Guideline
4,4’-DDE ND ND ND ND ND ND ND ND ND No
Guideline
4,4’-DDT ND ND ND ND ND ND ND ND ND No
Guideline
Aldrin ND ND ND ND ND ND ND ND ND No
Guideline
Alpha-BHC ND ND ND ND ND ND ND ND ND No
Guideline
Alpha
Chlordane ND ND ND ND ND ND ND ND ND
No
Guideline
Beta-BHC ND ND ND ND ND ND ND ND ND No
Guideline
Chlordane
(tech) ND ND ND ND ND ND ND ND ND
No
Guideline
Delta-BHC ND ND ND ND ND ND ND ND ND No
Guideline
Dieldrin ND ND ND ND ND ND ND ND ND No
Guideline
Endosulfan I ND ND ND ND ND ND ND ND ND No
Guideline
Endosulfan
II ND ND ND ND ND ND ND ND ND
No
Guideline
Endosulfan
Sulfate ND ND ND ND ND ND ND ND ND
No
Guideline
Endrin ND ND ND ND ND ND ND ND ND No
Guideline
Endrin
Aldehyde ND ND ND ND ND ND ND ND ND
No
Guideline
Eldrin
Ketone ND ND ND ND ND ND ND ND ND
No
Guideline
Gamma- ND ND ND ND ND ND ND ND ND No
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 95
Table 77. OrganoChlorine Pesticide Monitoring Data, CY 2018 (ND)- not detected
BHC
(Lindane)
Guideline
Heptachlor ND ND ND ND ND ND ND ND ND No
Guideline
Heptachlor
Epoxide ND ND ND ND ND ND ND ND ND
No
Guideline
Methoxychl
or ND ND ND ND ND ND ND ND ND
No
Guideline
Toxaphene ND ND ND ND ND ND ND ND ND No
Guideline
Parameters
MONITORING STATIONS
DENR
Water
Quality
Guideline
for Class C
Waters
(µg/L)
Palda
kit
CP
Primici
as
Macalo
ng
Maram
ba
Dinalao
an
San
Jua
n
Man
at
Daw
el
Bogton
g
4,4’-DDD ND ND ND ND ND ND ND ND ND No
Guideline
4,4’-DDE ND ND ND ND ND ND ND ND ND No
Guideline
4,4’-DDT ND ND ND ND ND ND ND ND ND No
Guideline
Aldrin ND ND ND ND ND ND ND ND ND No
Guideline
Alpha-BHC ND ND ND ND ND ND ND ND ND No
Guideline
Alpha
Chlordane ND ND ND ND ND ND ND ND ND
No
Guideline
Beta-BHC ND ND ND ND ND ND ND ND ND No
Guideline
Chlordane
(tech) ND ND ND ND ND ND ND ND ND
No
Guideline
Delta-BHC ND ND ND ND ND ND ND ND ND No
Guideline
Dieldrin ND ND ND ND ND ND ND ND ND No
Guideline
Endosulfan I ND ND ND ND ND ND ND ND ND No
Guideline
Endosulfan
II ND ND ND ND ND ND ND ND ND
No
Guideline
Endosulfan
Sulfate ND ND ND ND ND ND ND ND ND
No
Guideline
Endrin ND ND ND ND ND ND ND ND ND No
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 96
Table 78. OrganoChlorine Pesticide Monitoring Data, CY 2019 (ND)- not detected
B.1.14. Organophosphorus Compounds (OPPs)
Guideline
Endrin
Aldehyde ND ND ND ND ND ND ND ND ND
No
Guideline
Eldrin
Ketone ND ND ND ND ND ND ND ND ND
No
Guideline
Gamma-
BHC
(Lindane)
ND ND ND ND ND ND ND ND ND No
Guideline
Heptachlor ND ND ND ND ND ND ND ND ND No
Guideline
Heptachlor
Epoxide ND ND ND ND ND ND ND ND ND
No
Guideline
Methoxychl
or ND ND ND ND ND ND ND ND ND
No
Guideline
Toxaphene ND ND ND ND ND ND ND ND ND No
Guideline
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 97
Table 79 and 80 shows the OrganoPhosphorous Compounds Monitoring Data for CY 2018 and CY
2019. The Monitoring Data reflected very low concentrations (not detected), below the DENR water
quality guideline for Class C waterbody. Results do not pose risk to the environment.
Table 79. OrganoPhosphorus Compounds Monitoring Data, CY 2018 Parameters STATIONS DENR
Water
Quality
Guideline
for Class C
Waters
(µg/L)
Paldak
it
CP
Primici
as
Macalon
g
Maram
ba
Dinalaoa
n
San
Jua
n
Mana
t
Daw
el
Bogto
ng
Azinphosmeth
yl
ND ND ND ND ND ND ND ND ND No
Guideline
Bolstar ND ND ND ND ND ND ND ND ND No
Guideline
Chlorpyrifos ND ND ND ND ND ND ND ND ND No
Guideline
Coumaphos ND ND ND ND ND ND ND ND ND No
Guideline
Demeton-O ND ND ND ND ND ND ND ND ND No
Guideline
Diazinon ND ND ND ND ND ND ND ND ND No
Guideline
Dichlorvos ND ND ND ND ND ND ND ND ND No
Guideline
Disulfoton ND ND ND ND ND ND ND ND ND No
Guideline
Ethoprop ND ND ND ND ND ND ND ND ND No
Guideline
Fenchlorphos ND ND ND ND ND ND ND ND ND No
Guideline
Fensulfothion ND ND ND ND ND ND ND ND ND No
Guideline
Fenthion ND ND ND ND ND ND ND ND ND No
Guideline
Malathion ND ND ND ND ND ND ND ND ND No
Guideline
Merphos ND ND ND ND ND ND ND ND ND No
Guideline
Methyl
parathion
ND ND ND ND ND ND ND ND ND No
Guideline
Mervinphos ND ND ND ND ND ND ND ND ND No
Guideline
Phorate ND ND ND ND ND ND ND ND ND No
Guideline
Tetrachlorvin
phos
ND ND ND ND ND ND ND ND ND No
Guideline
Tokuthion ND ND ND ND ND ND ND ND ND No
Guideline
Trichloronate ND ND ND ND ND ND ND ND ND No
Guideline
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 98
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 99
Table 80. OrganoPhosphorus Compounds Monitoring Data, CY 2019
Parameters STATIONS DENR
Water
Quality
Guideline
for Class C
Waters
(µg/L)
Paldak
it
CP
Primicias
Macalo
ng
Maram
ba
San
Vicen
te
San
Jua
n
Man
at
Daw
el
Calm
ay
Azinphosmet
hyl
ND ND ND ND ND ND ND ND ND No
Guideline
Bolstar ND ND ND ND ND ND ND ND ND No
Guideline
Chlorpyrifos ND ND ND ND ND ND ND ND ND No
Guideline
Coumaphos ND ND ND ND ND ND ND ND ND No
Guideline
Demeton-O ND ND ND ND ND ND ND ND ND No
Guideline
Diazinon ND ND ND ND ND ND ND ND ND No
Guideline
Dichlorvos ND ND ND ND ND ND ND ND ND No
Guideline
Disulfoton ND ND ND ND ND ND ND ND ND No
Guideline
Ethoprop ND ND ND ND ND ND ND ND ND No
Guideline
Fenchlorpho
s
ND ND ND ND ND ND ND ND ND No
Guideline
Fensulfothio
n
ND ND ND ND ND ND ND ND ND No
Guideline
Fenthion ND ND ND ND ND ND ND ND ND No
Guideline
Malathion ND ND ND ND ND ND ND ND ND No
Guideline
Merphos ND ND ND ND ND ND ND ND ND No
Guideline
Methyl
parathion
ND ND ND ND ND ND ND ND ND No
Guideline
Mervinphos ND ND ND ND ND ND ND ND ND No
Guideline
Phorate ND ND ND ND ND ND ND ND ND No
Guideline
Tetrachlorvi
nphos
ND ND ND ND ND ND ND ND ND No
Guideline
Tokuthion ND ND ND ND ND ND ND ND ND No
Guideline
Trichloronat
e
ND ND ND ND ND ND ND ND ND No
Guideline
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 100
B.2. NAGUILIAN RIVER SYSTEM – WATER QUALITY MANAGEMENT AREA (NRS-
WQMA)
The Naguilian River System (NRS) Water Quality Management Area (WQMA) was officially
designated pursuant with DENR Administrative Order No. 18 series of 2016 dated June 21, 2016. The
Naguilian River System Water Quality Management Area (NRS-WQMA) covers the municipalities of
Bagulin, Bauang, Burgos and Naguilian and the City of San Fernando in the Province of La Union.
The Naguilian River System - Water Quality Management Area falls inside the geographical
coordinates of 16°38'7.91" and 16°28'14.18" north latitudes, and 120°18'20.84" and 120°32'56.07"
east longitudes. The whole WQMA has a total area of 26,856.81 hectares.
There are ninety-six (96) barangays within the NRS, with a total of 25,889 households and population
of 118,922 based on the 2014 Survey of the National Statistics Office.
Land-use in the proposed WQMA area can be classified generally into agricultural, residential, forest
and commercial areas. Aquaculture is very significant land use in Bauang.
The headwater of Naguilian River Sytem originates from one of the mountainous areas of Cordilleras.
Its upstream location is in Bagulin and Burgos in the north east and east, respectively, while the
downstream portion is in Bauang in the west in the province of La Union.
The annual averages for the parameters pH, DO, BOD and TSS revealed that the water quality from
CY 2014 to CY 2019 met their respective DENR Water Quality Guidelines for Class C water
classification.
The CY 2019 annual averages and monthly monitoring data for the parameters Color, Nitrate,
Phosphate and Chloride revealed that all monitoring stations met their respective DENR Water
Quality Guideline for Class C water classification.
The comparison of the geometric mean for Fecal Coliform from all monitoring stations of the NRS
WQMA from CY 2014 to CY 2018 recorded that the Geometric mean of the results of monitoring for
CY 2014 showed that all eleven (11) monitoring stations exceeded the DENR Water Quality
Guideline for Class C waters of 200 MPN/100ml. In CY 2015, the results of Fecal Coliform shows
that all monitoring stations did not meet the water quality guideline, although the annual geometric
mean of the monitoring displayed better results as compared to the results obtained in CY 2014, the
monitoring results in CY 2016 revealed that all monitoring stations still did not meet the DENR Water
Quality Guideline with ten (10) monitoring stations showing an increase in Fecal Coliform
concentration, with only NAG-4 station showing an improvement in water quality. The annual
Geometric mean for CY 2017, CY 2018 and CY 2019 recorded that all stations exceeded the DENR
Water Quality Guideline.
For the parameters Trace Metals, Inorganic Compounds, OrganoChlorine Pesticides and
OrganoPhosphorous Pesticides for CY 2018 and CY 2019, the monitoring data revealed that all
representative stations met their corresponding Water Quality Guideline.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 101
MONITORING RESULTS OF THE NAGUILIAN RIVER SYSTEM
Eleven (11) stations were established for water quality monitoring of the river system. Nine out of the
eleven stations located in Bagulin, Bauang, Burgos and Naguilian had been continuously monitored
monthly since CY 2014. Two additional stations were added in November 2014.
The parameters monitored for CY 2014 as baseline are: potential of Hydrogen (pH), Dissolved
Oxygen (DO), five-day Biochemical Oxygen Demand (BOD5), Total Suspended Solids (TSS), Total
Coliform and Fecal Coliform. Samples from designated monitoring stations were analysed at EMB
Region 1 Laboratory.
In addition, baseline analysis for Organochlorine Pesticides and trace metals such as lead (Pb), copper
(Cu), zinc (Zn), cadmium (Cd), nickel (Ni) and total chromium were also undertaken for the dry
season. Likewise, five strategic sampling points were also monitored for the parameters phosphates,
nitrites and nitrate for the rainy season. The other parameters were analysed at CRL Environmental
Laboratories. The monitoring stations are presented in Table 81.
Table 81. Naguilian River System Monitoring Stations
Station
ID Location
City/
Municipality
Initial date of
sampling
GPS LOCATION
Latitude Longitude
NAG-1 Naguilian
Bridge Naguilian January 2014 16°31’48” E 120°23’15” N
NAG-2 Mamat-ing
Bridge Naguilian January 2014 16°34’44” E 120°24’41” N
NAG-3 Guesset Bridge Naguilian January 2014 16°30’11” E 120°24’35” N
NAG-4 Batan Bridge Naguilian January 2014 16°30’50” E 120°25’38” N
BAG-1 Bagulin Bridge Bagulin January 2014 16°36’13” E 120°26’01” N
BAG-2 Suyo Bridge Bagulin January 2014 16°36’28” E 120°26’26” N
BUR-1 Caoayan
Bridge Burgos January 2014 16°31’37” E 120°26’21” N
BUR-2 Bolikewkew
Bridge Burgos January 2014 16°32’24” E 120°27’57” N
BAU-1 Bauang Bauang January 2014 16°31’07” E 120°19’48” N
SF-1 Pao Sur San Fernando
City
November
2014 16°35’34” E 120°23’07” N
SF-1 Sacyud San Fernando
City
November
2014 16°34’06” E 120°23’25” N
The results of the water quality monitoring of the 11 monitoring stations in the Naguilian River
System Water Quality Management Area for 2019 are to wit:
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 102
B.2.1. Potential of Hydrogen (pH)
Table 82 shows the pH Monitoring Data for CY 2019. The monitoring data for CY 2019 revealed that
all except NAG-4 station in April met the DENR Water Quality Guideline of 6.5-9.0 pH range.
Moreover, the annual average for all stations met the DENR Water Quality Guideline.
Table 82. pH Monitoring Data, CY 2019
(-) Water quality monitoring was not conducted
(--) Dried-up river bed
(---) Inaccessibility of monitoring station
STATION
I.D NAME OF STATION
Potential of Hydrogen (pH)
Jan Feb Mar Apr May Ju
n Jul Aug Sep Oct Nov Min Max Ave
BUR-2 Bolikewkew Bridge -
Burgos, La Union - 8.4 8.4 8.5 8.3 8.2 8 8.2 8.3 8.40 7.27 7.3 8.5 8.2
BUR-1 Caoayan Bridge - Burgos,
La Union
- 8.4 8.4 8.4 8.3 8.2 7.6 8 8.3 8.60 8.19 7.6 8.6 8.2
NAG-4 Batan Bridge - Naguilian,
La Union
- 8.9 8.9 9.2 8.3 8.2 7.6 7.7 8.2 7.10 8.19 7.1 9.2 8.2
NAG-3 Gueset Bridge - Naguilian,
La Union
- 8.2 8.3 8.6 8 8.3 7.6 7.5 8.1 8.50 7.94 7.5 8.6 8.1
BAG-2 Suyo Bridge - Bagulin, La
Union
- 8.8 9 8.8 8.2 8.3 8 8.3 8.4 8.50 8.29 8.0 9.0 8.5
BAG-1 Bagulin Bridge - Bagulin,
La Union
- 8.2 8.9 8.9 8.2 8.2 8.3 8.3 8.5 8.60 8.44 8.2 8.9 8.5
NAG-2 Mamat-Ing Bridge-
Naguilian, La Union
- 8.7 8.5 8.4 8.1 8.3 8 8.2 8.3 7.80 7.88 7.8 8.7 8.2
SF-2 PAO-SUR - City Of San
Fernando, La Union
- -- -- -- -- 7.5 8.3 8.3 8.5 8.40 7.95 8.0 8.5 8.3
SF-1 SACYUD - City Of San
Fernando, La Union
- -- -- -- -- 7.7 8.1 8.2 --- 8.30 8.01 8.0 8.3 8.2
NAG-1 Naguilian Bridge -
Naguilian, La Union
- 8.5 8.5 8.6 8 8.2 7.8 7.3 8.1 8.60 8.12 7.3 8.6 8.2
BAU-1 Bauang Bridge - Bauang,
La Union
- 8.3 8.2 8.2 7.4 8.1 7.7 7.2 7.9 8.50 8.40 7.2 8.5 8.0
DENR Water Quality Guideline Value
for
Class " C " Water Classification
6.5-9.0
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 103
Table 83 shows the comparison of six (6) years annual average for Potential of Hydrogen (pH)
monitoring, it is reflected that the yearly averages from CY 2014 to CY 2019 are within the DENR
Water Quality Guideline for Class C water body of 6.5 to 9.0.
Table 83. Comparison of six (6) years annual average data for Potential of Hydrogen
Stations Locations
Potential of Hydrogen (pH)
CY 2014 CY 2015 CY 2016 CY 2017 CY
2018
CY 2019
NAG-1 Naguilian Bridge 7.5 7.2 6.5 8.0 7.8 8.0
NAG-2 Mamat-ing Bridge 7.5 7.3 6.5 8.2 8.3 8.2
NAG-3 Gueset Bridge 7.5 7.1 6.5 8.2 8.0 8.1
NAG-4 Batan Bridge 7.6 7.5 6.5 8.5 8.0 8.2
BAG-1 Bagulin Bridge 7.4 7.3 6.4 8.4 8.5 8.5
BAG-2 Suyo Bridge 7.3 7.2 6.4 8.4 8.4 8.5
BUR-1 Caoayan Bridge 7.3 7.4 6.4 8.4 8.1 8.2
BUR-2 Bolikewkew Bridge 7.7 7.1 6.5 8.2 8.2 8.2
BAU-1 Bauang Bridge 7.5 7.4 6.5 8.0 8.0 8.2
SF-1 Pao Sur 7.8 7.5 7.2 8.0 8.2 8.3
SF-2 Sakyud 8.0 7.3 7.0 8.0 7.7 8.2
DENR Water Quality
Guideline for Class “C”
Water Classification
6.5-9.0
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 104
B.2.2. Dissolved Oxygen (DO)
Table 84 presents the Dissolved Oxygen Monitoring Data for CY 2019. As reflected from the table,
all stations met the DENR minimum requirement of 5 mg/L for Class C water classification.
Table 84. Dissolved Oxygen Monitoring Data, CY 2019
(-) Water quality monitoring was not conducted
(--) Dried-up river bed
(---) Inaccessibility of monitoring station
STATION
I.D NAME OF STATION
Dissolved Oxygen (DO) (mg/L)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Min Max Ave
BUR-2 Bolikewkew Bridge - Burgos,
La Union - 8.5 7.7 7.9 7.9 8.4 8.6 8.6 8.56 8.00 8.08 7.7 8.6 8.2
BUR-1 Caoayan Bridge - Burgos, La
Union - 10.8 8 7.8 7.8 8.3 8.4 8.8 8.56 8.10 8.74 7.8 10.8 8.6
NAG-4 Batan Bridge - Naguilian, La
Union - 11.6 8.5 11.3 8.6 7.8 8.9 8.1 8.91 8.60 8.46 8.1 11.6 9.2
NAG-3 Gueset Bridge - Naguilian, La
Union - 8.6 8.3 8.9 8.4 8.1 8.3 8.1 8.05 8.10 7.85 7.9 8.9 8.3
BAG-2 Suyo Bridge - Bagulin, La
Union - 9.6 7.9 8.9 7.8 8.6 8.4 8.8 8.91 7.90 9.45 7.8 9.6 8.6
BAG-1 Bagulin Bridge - Bagulin, La
Union - 11 8.1 9.3 7.4 7.9 7.9 8.8 8.07 8.30 9.88 7.4 11.0 8.8
NAG-2 Mamat-Ing Bridge- Naguilian,
La Union - 9.3 7.9 7.9 7.4 8.6 8.2 8.4 8.56 8.50 8.83 7.4 9.3 8.3
SF-2 PAO-SUR - City Of San
Fernando, La Union - -- -- -- -- 5.7 7.8 8.2 7.89 7.60 7.79 7.6 8.2 7.9
SF-1 SACYUD - City Of San
Fernando, La Union - -- -- -- -- 7.3 7.1 7.4 --- 7.80 8.19 7.1 8.2 7.6
NAG-1 Naguilian Bridge - Naguilian,
La Union - 8.6 8.6 8 7.1 8.5 8.5 8.3 8.44 8.20 8.69 7.1 8.7 8.3
BAU-1 Bauang Bridge - Bauang, La
Union - 8.3 7.5 6.9 6.7 7.7 8 8.2 8.39 7.30 7.59 6.7 8.4 7.7
DENR Water Quality Guideline Value for
Class " C " Waters ≥5.0
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 105
Table 85 shows the comparison of six (6) years annual average for Dissolved Oxygen (DO)
monitoring in all stations of the NRS WQMA. The table shows that the water quality from CY 2014
to CY 2019 constantly meets the DENR minimum Water Quality Guideline of 5.0 mg/L.
Table 85. Comparison of six (6) years annual average data for Dissolved Oxygen
Stations Locations
Dissolved Oxygen (DO)
CY
2014 CY 2015
CY
2016
CY
2017 CY 2018
CY 2019
NAG-1 Naguilian Bridge 9.6 7.9 8.3 8.7 7.2 8.3
NAG-2 Mamat-ing Bridge 9.5 8.2 7.9 8.3 8.2 8.3
NAG-3 Gueset Bridge 10 8.0 8.6 8.9 8.8 8.3
NAG-4 Batan Bridge 11.8 9.7 8.7 9.6 8.4 9.2
BAG-1 Bagulin Bridge 8.9 8.2 8.6 8.8 8.4 8.8
BAG-2 Suyo Bridge 9.1 8.6 8.3 8.5 8.3 8.6
BUR-1 Caoayan Bridge 8.7 8.7 8.7 8.2 8.2 8.6
BUR-2 Bolikewkew Bridge 8.5 7.5 8.0 8.1 8.4 8.2
BAU-1 Bauang Bridge 9.1 8.9 6.9 7.6 7.9 7.7
SF-1 Pao Sur 7.4 8.8 7.5 7.7 8.3 7.9
SF-2 Sakyud 8.6 7.4 8.3 8.4 8.4 7.6
DENR Water Quality Guideline for
Class “C” Water Classification ≥5.0
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 106
B.2.3. Biochemical Oxygen Demand (BOD)
Table 86 shows the monitoring data of Biochemical Oxygen Demand for CY 2019. All except station
BAG-1 in April met the DENR water quality guideline (BOD ≤7 mg/L) for Class C water
classification.
Table 86. Biochemical Oxygen Demand Monitoring Data, CY 2019
(-) Water quality monitoring was not conducted
(--) Dried-up river bed
(---) Inaccessibility of monitoring station
BOD incubator under maintenance
STATIO
N
I.D
NAME OF STATION
Biochemical Oxygen Demand (BOD)
Jan Feb Ma
r Apr
Ma
y
Ju
n Jul Aug Sep Oct Nov Min
Ma
x Ave
BUR-2 Bolikewkew Bridge -
Burgos, La Union - <1 <1 6 <1 2 2 2 <1 2 6 3
BUR-1 Caoayan Bridge - Burgos,
La Union - 2 <1 6 <1 2 <1 <1 <1 2 6 4
NAG-4 Batan Bridge - Naguilian,
La Union - 2 <1 6 2 2 3 2 <1 2 6 3
NAG-3 Gueset Bridge - Naguilian,
La Union - <1 <1 5 1 3 2 3 <1 1 5 3
BAG-2 Suyo Bridge - Bagulin, La
Union - 4 1 7 5 3 4 <1 <1 1 7 4
BAG-1 Bagulin Bridge - Bagulin,
La Union - 2 1 8 4 2 <1 2 2 1 8 3
NAG-2 Mamat-Ing Bridge-
Naguilian, La Union - 2 <1 6 4 4 2 2 <1 2 6 3
SF-2 PAO-SUR - City Of San
Fernando, La Union - -- -- -- -- 2 1 2 2 1 2 2
SF-1 SACYUD - City Of San
Fernando, La Union - -- -- -- -- <1 2 2 --- 2 2 2
NAG-1 Naguilian Bridge -
Naguilian, La Union - 2 <1 6 4 2 2 <1 <1 2 6 4
BAU-1 Bauang Bridge - Bauang,
La Union - 1 <1 7 5 2 4 3 <1 1 7 4
DENR Water Quality Guideline
Value for
Class " C " Waters
≤7
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 107
Table 87 shows the comparison of six (6) years annual averages for Biochemical Oxygen Demand
(BOD) Monitoring. The annual average for Biochemical Oxygen Demand from CY 2014 to CY 2019
revealed that all monitoring stations met the DENR Water Quality Guideline of 7.0 mg/L for Class C
water classification.
Table 87. Comparison of six (6) years annual average for Biochemical Oxygen Demand
Stations Locations
Biochemical Oxygen Demand (BOD)
CY 2014 CY 2015 CY 2016 CY 2017 CY 2018 CY 2019
NAG-1 Naguilian Bridge 3 3 3 2 2 4
NAG-2 Mamat-ing Bridge 4 3 2 2 3 3
NAG-3 Gueset Bridge 3 3 2 2 2 3
NAG-4 Batan Bridge 3 2 2 3 2 3
BAG-1 Bagulin Bridge 4 2 2 2 3 3
BAG-2 Suyo Bridge 4 3 3 2 3 4
BUR-1 Caoayan Bridge 3 2 2 2 2 4
BUR-2 Bolikewkew Bridge 3 2 2 3 2 3
BAU-1 Bauang Bridge 4 3 2 3 2 4
SF-1 Pao Sur 4 3 2 2 3 2
SF-2 Sakyud 3 6 3 3 <1 2
DENR Water Quality
Guideline for Class “C” Water
Classification
7
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 108
B.2.4. Color
Based on the tabulated monitoring data for CY 2019 in Table 88, all stations met the maximum Color
requirement of 75 TCU. The Color values range from 5 TCU to 15 TCU.
Table 88. Color Monitoring Data, CY 2019
(-) Water quality monitoring was not conducted
(--) Dried-up river bed
(---) Inaccessibility of monitoring station
STATIO
N
I.D
NAME OF STATION
Color (TCU)
Jan Feb Mar Apr May Ju
n Jul Aug Sep Oct Nov Min Max Ave
BUR-2 Bolikewkew Bridge -
Burgos, La Union - <5 5 5 5 5 5 <5 5 5 <5 <5 5 5
BUR-1 Caoayan Bridge - Burgos,
La Union - 10 5 5 5 10 5 <5 5 5 <5 <5 10 6
NAG-4 Batan Bridge - Naguilian, La
Union - 5 5 10 10 15 5 <5 5 5 <5 <5 15 8
NAG-3 Gueset Bridge - Naguilian,
La Union - 5 5 10 10 15 10 <5 5 5 <5 <5 15 8
BAG-2 Suyo Bridge - Bagulin, La
Union - 5 5 5 10 10 5 <5 5 5 <5 <5 10 6
BAG-1 Bagulin Bridge - Bagulin, La
Union - 5 5 5 5 10 5 <5 5 5 <5 <5 10 6
NAG-2 Mamat-Ing Bridge-
Naguilian, La Union - 5 5 5 10 15 5 <5 5 5 <5 <5 15 7
SF-2 PAO-SUR - City Of San
Fernando, La Union - -- -- -- -- 15 10 5 5 5 <5 <5 15 8
SF-1 SACYUD - City Of San
Fernando, La Union - -- -- -- -- 15 10 5 --- 5 <5 <5 15 9
NAG-1 Naguilian Bridge -
Naguilian, La Union - 5 5 5 15 10 5 <5 5 5 <5 <5 15 7
BAU-1 Bauang Bridge - Bauang, La
Union - 5 5 5 10 10 10 <5 <5 5 <5 <5 10 7
DENR Water Quality Guideline Value
for
Class " C " Waters
75
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 109
B.2.5. Temperature
Tables 89 shows the Temperature monitoring data for Class C Water Classification. Several
monitoring stations did not meet the DENR Water Quality Guideline (26-30°C) for temperature that is
due to the high elevation of the stations causing the relatively cold ambient results for the said
parameter
Table 89. Temperature Monitoring Data, CY 2019
(-) Water quality monitoring was not conducted
(--) Dried-up river bed
(---) Inaccessibility of monitoring station
Water Quality Checker under repair
STATIO
N
I.D
NAME OF STATION Temperature (°C)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Min Max Ave
BUR-2 Bolikewkew Bridge - Burgos,
La Union -
27.0
9
28.2
3
31.3
2
28.7
5
31.8
5
28.0
0
28.0
1
25.3
6
27.0
9
31.8
5 28.58
BUR-1 Caoayan Bridge - Burgos, La
Union -
27.7
9
29.0
8
32.4
4
29.7
4
30.2
3
27.7
5
29.2
2
25.8
4
25.8
4
32.4
4 29.01
NAG-4 Batan Bridge - Naguilian, La
Union -
29.9
5
30.2
7
33.1
8
31.0
1
30.6
4
27.6
9
28.7
1
26.9
3
26.9
3
33.1
8 29.80
NAG-3 Gueset Bridge - Naguilian,
La Union -
27.7
3
30.2
7 33.2
32.0
4
32.4
9
27.8
4
29.0
1
27.1
0
27.1
0 33.2 29.96
BAG-2 Suyo Bridge - Bagulin, La
Union -
27.4
3
29.6
5
34.5
7
27.4
3
28.9
5
28.5
4
29.4
1
25.8
2
25.8
2
34.5
7 28.98
BAG-1 Bagulin Bridge - Bagulin, La
Union -
28.5
6
30.4
7
34.3
4
27.5
4
29.3
9
28.7
1
30.1
0
27.0
1
27.0
1
34.3
4 29.52
NAG-2 Mamat-Ing Bridge-
Naguilian, La Union -
28.5
8
30.9
1 34.5
27.8
8
32.5
0
29.7
7
29.3
1
27.3
3
27.3
3 34.5 30.10
SF-2 PAO-SUR - City Of San
Fernando, La Union - -- -- -- --
32.2
0
31.4
4
29.5
1
29.7
0
29.5
1
32.2
0 30.71
SF-1 SACYUD - City Of San
Fernando, La Union - -- -- -- --
28.7
5
33.7
8
29.1
0 ---
28.7
5
33.7
8 30.54
NAG-1 Naguilian Bridge - Naguilian,
La Union - 28
29.9
4
33.0
4
26.9
9
31.4
1
26.6
7
29.7
3
26.4
4
26.4
4
33.0
4 29.03
BAU-1 Bauang Bridge - Bauang, La
Union - 26.4
28.3
2
31.6
2
26.9
8
30.1
5
26.1
8
29.8
4
26.0
4
26.0
4
31.6
2 28.19
DENR Water Quality Guideline Value
for
Class " C " Waters
25-31°C
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 110
B.2.6. Nitrate
Table 90 shows the monitoring data for the monitoring stations of the Naguilian River System. As
gleaned from the table, the Nitrate results revealed that all monitoring station met the DENR Water
Quality Guideline of ≤7 mg/L for Class C water classification.
Table 90. Nitrate Monitoring Data, CY 2019
(-) Water quality monitoring was not conducted
(--) Dried-up river bed
(---) Inaccessibility of monitoring station
STATIO
N
I.D
NAME OF STATION
Nitrate (mg/L)
Jan Feb Mar Apr May Ju
n Jul Aug Sep Oct Nov Min Max Ave
BUR-2 Bolikewkew Bridge -
Burgos, La Union -
<0.0
5
<0.0
5
<0.0
5 0.19
0.2
1 0.07 0.15 0.09 0.27 0.08
<0.0
5 0.27 0.11
BUR-1 Caoayan Bridge - Burgos,
La Union -
<0.0
5
<0.0
5
<0.0
5 0.15
0.1
7 0.08 0.18 0.09 <0.05 0.06
<0.0
5 0.18 0.08
NAG-4 Batan Bridge - Naguilian, La
Union -
<0.0
5
<0.0
5
<0.0
5 0.17
0.1
9 0.1 0.19 0.09 <0.05 <.05
<0.0
5 0.19 0.08
NAG-3 Gueset Bridge - Naguilian,
La Union - 0.15
<0.0
5
<0.0
5 0.1
0.1
8 0.12 0.24 0.09 0.05 0.60
<0.0
5 0.60 0.16
BAG-2 Suyo Bridge - Bagulin, La
Union - 1.23 0.63 0.61 1.38
0.8
4 0.45 0.78 0.72 0.83 1.20 0.45 1.38 0.87
BAG-1 Bagulin Bridge - Bagulin, La
Union - 1.22 0.62 0.54 1.39
0.8
3 0.47 0.84 0.76 0.82 1.17 0.54 1.39 0.87
NAG-2 Mamat-Ing Bridge-
Naguilian, La Union - 0.83 0.47 0.5 1.27
0.7
9 0.44 0.8 0.76 0.70 1.11 0.47 1.27 0.77
SF-2 PAO-SUR - City Of San
Fernando, La Union - -- -- -- --
0.1
8 0.56 0.32 0.11 0.07 0.11 0.07 0.56 0.23
SF-1 SACYUD - City Of San
Fernando, La Union - -- -- -- --
0.1
9 0.9 0.67 --- 0.07 0.14 0.07 0.9 0.39
NAG-1 Naguilian Bridge -
Naguilian, La Union - 0.3 0.07 0.1 1.01
0.8
7 0.49 1.2 0.73 0.85 1.06 0.07 1.06 0.67
BAU-1 Bauang Bridge - Bauang, La
Union - 0.05
<0.0
5 0.06 1.19 0.7 0.42 0.82 0.69 0.87 0.76
<0.0
5 1.19 0.56
DENR Water Quality Guideline Value
for
Class " C " Waters
≤7
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 111
B.2.7. Phosphate
Table 91 shows the Phosphate Monitoring Data for CY 2019. As gleaned from the Table, the
Phosphate results revealed that all except station NAG-2 in April met the DENR Water Quality
Guideline of ≤0.5 mg/L for Class C water classification.
Table 91. Phosphate Monitoring Data for CY 2019
(-) Water quality monitoring was not conducted
(--) Dried-up river bed
(---) Inaccessibility of monitoring station
STATION
I.D NAME OF STATION
Phosphate (mg/L)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Min Max Ave
BUR-2 Bolikewkew Bridge - Burgos,
La Union - 0.07 0.05
<0.0
5 0.05 0.06 0.06 0.07 0.07 0.09 0.07 0.05 0.09 0.06
BUR-1 Caoayan Bridge - Burgos, La
Union -
<0.0
5
<0.0
5
<0.0
5
<0.0
5 0.08 0.07 0.07 0.08 0.19 0.08
<0.0
5 0.19 0.07
NAG-4 Batan Bridge - Naguilian, La
Union -
<0.0
5
<0.0
5
<0.0
5
<0.0
5 0.09 0.07 0.07 0.07 0.07 0.08
<0.0
5 0.09 0.06
NAG-3 Gueset Bridge - Naguilian, La
Union - 0.11
<0.0
5
<0.0
5 0.06 0.07 0.07 0.07 0.06 0.11 0.08
<0.0
5 0.11 0.07
BAG-2 Suyo Bridge - Bagulin, La
Union - 0.11 0.06 0.11 0.13 0.1
<0.0
5 0.07 0.09 0.16 0.14
<0.0
5 0.11 0.10
BAG-1 Bagulin Bridge - Bagulin, La
Union - 0.11 0.06 0.11 0.14 0.11 0.07 0.08 0.09 0.09 0.15 0.06 0.11 0.10
NAG-2 Mamat-Ing Bridge- Naguilian,
La Union - 0.08 0.06 0.9 0.19 0.1 0.07 0.07 0.08 0.14 0.13 0.06 0.19 0.18
SF-2 PAO-SUR - City Of San
Fernando, La Union - -- -- -- --
<0.0
5
<0.0
5 0.06 0.07 <0.05 0.05 0.06 0.07 0.05
SF-1 SACYUD - City Of San
Fernando, La Union - -- -- -- -- 0.05 0.06 0.07 --- <0.05 0.06 0.05 0.07 0.06
NAG-1 Naguilian Bridge - Naguilian,
La Union -
<0.0
5
<0.0
5
<0.0
5 0.32 0.12 0.09 0.08 0.08 0.13 0.12 0.08 0.13 0.11
BAU-1 Bauang Bridge - Bauang, La
Union -
<0.0
5
<0.0
5
<0.0
5 0.25 0.12 0.06 0.08 0.08 0.12 0.12 0.06 0.25 0.10
DENR Water Quality Guideline Value for
Class " C " Waters ≤0.5
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 112
B.2.8. Chloride
Table 92 shows the Chloride Monitoring Data for CY 2019. As gleaned from the Table, the Chloride
results revealed that all monitoring stations met the DENR Water Quality Guideline of ≤350 mg/L for
Class C water classification.
Table 92. Chloride Monitoring Data for CY 2019
(-) Water quality monitoring was not conducted
(--) Dried-up river bed
(---) Inaccessibility of monitoring station
STATIO
N
I.D
NAME OF STATION
Chloride (mg/L)
Jan Feb Mar Apr Ma
y
Ju
n Jul Aug Sep Oct Nov Min
Ma
x Ave
BUR-2 Bolikewkew Bridge -
Burgos, La Union - <10 <10 <10 <10
<1
0 <10 <10 <10 <10 <10 <10 <10 <10
BUR-1 Caoayan Bridge - Burgos,
La Union - <10 <10 <10 <10
<1
0 <10 <10 <10 <10 <10 <10 <10 <10
NAG-4 Batan Bridge - Naguilian, La
Union - <10 <10 <10 <10
<1
0 <10 <10 <10 <10 <10 <10 <10 <10
NAG-3 Gueset Bridge - Naguilian,
La Union - <10 <10 <10 <10
<1
0 <10 <10 <10 <10 <10 <10 <10 <10
BAG-2 Suyo Bridge - Bagulin, La
Union - 29 40 29 <10
<1
0 <10 <10 <10 <10 <10 <10 40 14.7
BAG-1 Bagulin Bridge - Bagulin,
La Union - 29 30 39 <10
<1
0 <10 <10 <10 <10 <10 <10 39 14.7
NAG-2 Mamat-Ing Bridge-
Naguilian, La Union - 29 30 29 <10
<1
0 <10 <10 <10 <10 <10 <10 30 13.7
SF-2 PAO-SUR - City Of San
Fernando, La Union - -- -- -- --
<1
0 <10 <10 <10 <10 <10 <10 <10 <10
SF-1 SACYUD - City Of San
Fernando, La Union - -- -- -- --
<1
0 <10 <10 --- <10 <10 <10 <10 <10
NAG-1 Naguilian Bridge -
Naguilian, La Union - 29 20 29 <10
<1
0 <10 <10 <10 <10 <10 <10 29 12.7
BAU-1 Bauang Bridge - Bauang, La
Union - 20 20 20 <10
<1
0 <10 <10 <10 <10 <10 <10 20 10.9
DENR Water Quality Guideline Value
for
Class " C " Waters
≤350
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 113
B.2.9. Total Suspended Solids (TSS)
Table 93 presents the Total Suspended Solids Monitoring Data for the CY 2019. All except stations
NAG-1, NAG-2 and BAU-1 met the DENR water quality guideline (TSS ≤80 mg/L) for the Total
Suspended Solids parameter. The high concentration was attributed by natural surface run-off during
the on-set of rainy seasons.
Table 93. Total Suspended Solids Monitoring Data, CY 2019
(-) Water quality monitoring was not conducted
(--) Dried-up river bed
(---) Inaccessibility of monitoring station
STATIO
N
I.D
NAME OF STATION
Total Suspended Solids (TSS) (mg/L)
Jan Feb Mar Apr Ma
y
Ju
n Jul Aug Sep Oct Nov Min
Ma
x Ave
BUR-2 Bolikewkew Bridge -
Burgos, La Union - 2 <2 15 2 11 7 5 <2 <2 3 2 15 6
BUR-1 Caoayan Bridge - Burgos,
La Union - 3 2 5 4 18 10 3 3 <2 2 2 10 4
NAG-4 Batan Bridge - Naguilian,
La Union - <2 <2 3 4 38 14 8 <2 <2 3 3 14 6
NAG-3 Gueset Bridge - Naguilian,
La Union - 10 24 7 23 20 14 4 3 19 6 3 24 12
BAG-2 Suyo Bridge - Bagulin, La
Union - 2 3 7 55 31 32 8 2 2 3 2 55 13
BAG-1 Bagulin Bridge - Bagulin,
La Union - 2 4 10 43 25 40 3 <2 <2 5 2 43 15
NAG-2 Mamat-Ing Bridge-
Naguilian, La Union - 2 4 3 95 32 33 4 3 2 3 2 95 17
SF-2 PAO-SUR - City Of San
Fernando, La Union - -- -- -- -- 4 20 4 3 <2 4 3 20 8
SF-1 SACYUD - City Of San
Fernando, La Union - -- -- -- -- 15 16 11 --- 3 8 3 16 10
NAG-1 Naguilian Bridge -
Naguilian, La Union - 9 10 4 125 19 54 10 5 4 4 4 125 25
BAU-1 Bauang Bridge - Bauang, La
Union - 2 7 2 101 35 72 20 6 5 5 2 101 24
DENR Water Quality Guideline Value
for
Class " C " Waters
80
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 114
Table 94. Fecal Coliform Monitoring Data, CY 2019
(--) Dried-up river bed
(---) Inaccessibility of monitoring station
Station ID NAME OF STATION
PARAMETER MIN MAX GEOMEAN
Fecal Coliform (FC)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov
BUR-2 Bolikewkew Bridge 2400 1300 7000 35000 790 700 2400 2400 330 1400 1300 700 35000 1940
BUR-1 Caoayan 2400 330 140 16000 330 11000 2400 2200 490 9200 1100 140 16000 1594
NAG-4 Batan Bridge 230 330 130 24000 230 24000 24000 2400 490 3500 1300 130 24000 1593
NAG-3 Gueset Bridge 490 230 130 24000 3500 4600 16000 9200 9200 790 330 130 24000 1996
BAG-2 Suyo 230 790 280 9200 54000 14000 2400 9200 330 9200 1100 230 54000 2521
BAG-1 Bagulin 230 230 490 24000 160000 1700 2400 16000 2400 2400 330 230 160000 2355
NAG-2 Mamat-ing Bridge 230 490 490 24000 160000 4600 160000 35000 9200 5400 170 170 160000 4974
SF-2 PAO-SUR -- -- -- -- -- 160000 5400 9200 2400 9200 790 790 160000 7194
SF-1 SACYUD -- -- -- -- -- 54000 5400 5400 --- 5400 1700 1700 54000 6792
NAG-1 Naguilian Bridge 3500 330 460 9200 160000 92000 24000 24000 2400 2400 490 330 160000 5413
BAU-1 Bauang 2400 79 23 130 92000 24000 24000 35000 790 790 700 23 92000 1746
DENR Water Quality Guideline for
Class “C” Water Classification 200 MPN/100ml
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 115
Table 95 displays the comparison of six (6) years annual geometric mean for Fecal Coliform (FC).
The Geometric mean of the results of monitoring for CY 2014 showed that all eleven (11) monitoring
stations exceeded the DENR Water Quality Guideline for Class C waters of 200 MPN/100ml. In CY
2015, the results of Fecal Coliform shows that all monitoring stations did not meet the water quality
guideline, although the annual geometric mean of the monitoring displayed better results as compared
to the results obtained in CY 2014, the monitoring results in CY 2016 revealed that all monitoring
stations still did not meet the DENR Water Quality Guideline with ten (10) monitoring stations
showing an increase in Fecal Coliform concentration, with only NAG-4 station showing an
improvement in water quality. The annual Geometric mean for CY 2017, CY 2018 and CY 2019
recorded that all stations exceeded the DENR Water Quality Guideline.
Table 95. Comparison of six (6) years annual geometric mean for Fecal Coliform (FC)
Stations Locations Fecal Coliform (FC)
CY 2014 CY 2015 CY 2016 CY 2017 CY 2018 CY 2019
NAG-1 Naguilian Bridge 24384 357 1268 7023 3325 1940
NAG-2 Mamat-ing
Bridge 3136 347 1323 2373 894 1594
NAG-3 Gueset Bridge 14555 216 736 6121 1818 1593
NAG-4 Batan Bridge 6828 531 226 2683 1637 1996
BAG-1 Bagulin Bridge 10071 385 652 4150 940 2521
BAG-2 Suyo Bridge 10162 279 637 6179 2047 2355
BUR-1 Caoayan Bridge 4805 284 470 7729 3153 4974
BUR-2 Bolikewkew
Bridge 3561 17553 1225 2556 782 7194
BAU-1 Bauang Bridge 14992 533 1396 2775 1737 6792
SF-1 Pao Sur 5550 326 520 9233 7846 5413
SF-2 Sakyud 7000 2666 357 27753 2293 1746
DENR Water Quality
Guideline set for Class “C”
Waters
200 MPN/ 100 mL
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 116
Table 96 is the annual averages of the ten (10) primary parameters monitored for CY 2019. All the
averages are with the Water Quality Guideline for C waters except for the Geomean for Fecal
Coliform.
Table 96. ANNUAL AVERAGES OF THE PRIMARY PARAMETERS, CY 2019
B.2.11. Trace Metals
Table 97 and Table 98 shows the results of the heavy metal analysis on various sampling points of the
NRS WQMA in CY 2018 and CY 2019, respectively.
a. Arsenic (As)
The results of monitoring in the five (5) established monitoring stations are far below the water
quality guideline of 0.02 mg/l Arsenic with values of less than 0.01 mg/L.
b. Cadmium (Cd)
The potential sources of cadmium are from electroplating activities and batteries. The results of the
Heavy Metal Analysis for Cadmium recorded less than 0.006 mg/L which is higher the water quality
guideline of 0.005 mg/L.
Station
ID
NAME OF
STATION
PARAMETERS
Averages Geometric
Mean
pH DO BOD NO3-N PO4 Cl- Color Temp TSS (FC)
BUR-2 Bolikewkew
Bridge 8.0 8.3 4 0.11 0.06 <10 5 28.58 6 1940
BUR-1 Caoayan
Bridge 8.2 8.3 3 0.08 0.07 <10 6 29.01 4 1594
NAG-4 Batan Bridge 8.1 8.3 3 0.08 0.06 <10 8 29.80 6 1593
NAG-3 Gueset
Bridge 8.2 9.2 3 0.16 0.07 <10 8 29.96 12 1996
BAG-2 Suyo Bridge 8.5 8.8 3 0.87 0.10 14.7 6 28.98 13 2521
BAG-1 Bagulin
Bridge 8.5 8.6 4 0.87 0.10 14.7 6 29.52 15 2355
NAG-2 Mamat-Ing
Bridge 8.2 8.6 4 0.77 0.18 13.7 7 30.10 17 4974
SF-2 PAO-SUR 8.2 8.2 3 0.23 0.05 <10 8 30.71 8 7194
SF-1 SACYUD 8.2 7.7 4 0.39 0.06 <10 9 30.54 10 6792
NAG-1 Naguilian
Bridge 8.3 7.9 2 0.67 0.11 12.7 7 29.03 25 5413
BAU-1 Bauang
Bridge 8.2 7.6 2 0.56 0.10 10.9 7 28.19 24 1746
DENR Water Quality
Guideline set for Class
“C” Water
Classification
6.0-
9.0
5.0
mg/L
7.0
mg/L
7.0
mg/L
0.5
mg/L
350
mg/L
75
TCU
25-31
°C
80.0
mg/L
200 MPN/
100 ml
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 117
c. Chromium (Cr)
Chromium compounds are primarily used in dyes and paints and in the tanning of leather. In the
automobile industry, hexavalent chromium is found in the primer paints for refinishing applications.
The five stations of the NRS WQMA that were tested for the presence of chromium obtained results
that are under the DENR water quality guideline standard of 0.05 mg/L.
d. Copper (Cu)
All five representative stations of the NRS-WQMA attained a value of <0.01μg/L. All are within the
DENR water quality guideline of 0.02 mg/L.
e. Lead (Pb) Five stations that are representative of each LGUs were tested for Lead Concentration, all five stations
yielded values that are less than 0.05 mg/L, the DENR set Guideline for Lead.
f. Mercury The representative stations all yielded <0.0001 values of mercury, they have met the DENR water
quality guideline of 0.002 mg/L.
g. Zinc (Zn)
The two (2) years monitoring data (CY 2018 and CY 2019) recorded <0.03 mg/L which are far below
the water quality guideline value of 2 mg/L.
Table 97. Heavy Metal Monitoring Data, CY 2018
Parameters STATIONS DENR
Water
Quality
Guideline
for Class C
Waters
(mg/L)
NAG-1 BAG-1 BUR-1 BAU-1 SF-1
Arsenic <0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
0.02
Cadmium <0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
0.05
Chromium <0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
0.05
Copper <0.01 <0.01 <0.01 <0.01 <0.01 0.01
Lead <0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
0.05
Zinc <0.03 <0.03 <0.03 <0.03 <0.03 2
Mercury <0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
0.002
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 118
Table 98. Heavy Metal Monitoring Data, CY 2019
B.2.12. Inorganic Compounds
Table 99 shows the results of Inorganic Compounds Monitoring Data for CY 2018 and CY 2019.
Ammonia
The results of analysis for the presence of Ammonia exceedance were noted at stations NAG-1,
BAG-1 and BAN-1.
Cyanide, Free
The results of the analysis for the presence of free Cyanide reveals that the five (5) monitoring
stations met the DENR water quality guideline of 0.05 µg/L.
Nitrates
The results of the analysis for the presence of Nitrates show that the five (5) monitoring stations
met the DENR water quality guideline of 7.0 mg/L.
Phosphates
The results of the analysis for the presence of Phosphates showed that the five (5) monitoring
stations met the DENR water quality guideline of 0.5 mg/L.
Parameters STATIONS DENR
Water
Quality
Guideline
for Class C
Waters
(mg/L)
NAG-1 BAG-1 BUR-1 BAU-1 SF-1
Arsenic <0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
0.02
Cadmium <0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
0.005
Chromium <0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
0.05
Copper <0.01 <0.01 <0.01 <0.01 <0.01 0.01
Lead <0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
0.05
Zinc <0.03 <0.03 <0.03 <0.03 <0.03 2
Mercury <0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
0.002
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 119
Table 99. Inorganic Compounds Monitoring Data, CY 2018 and CY 2019
Paramete
rs
MONITORING STATIONS DENR
Water
Quality
Guidelin
e for
Class C
Waters
(mg/L)
NAG-1 BAG-1 BUR-1 BAU-1 NAG-4
CY
2018
CY
2019
CY
2018
CY
2019
CY
2018
CY
2019
CY
201
8
CY
201
9
CY
2018
CY
2019
Ammonia 0.00
8
0.00
6 1.3 1.1 <0.003 <0.003 0.07 0.06 0.04 0.05 0.05
Cyanide,
Free
<0.0
2
<0.0
2
<0.0
2
<0.0
2 <0.05 <0.05 0.04 0.03
<0.0
2
<0.0
2 0.1
Nitrate 1.7 1.2 2.1 1.8 <0.000
2
<0.000
2 1.1 1.3 0.1 0.2 7.0
Phosphat
e 0.1 0.1 0.2 0.1 <0.007 <0.007 0.09 0.08 0.07 0.06 0.5
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 120
B.2.13. OrganoChlorine Pesticides (OCPs)
Table 100 and 101 shows the OrganoChlorine Pesticide Monitoring Data for CY 2018 and CY 2019.
Results of baseline monitoring reflected very low concentrations (not detected), below the DENR
water quality guideline for Class C waterbody. Results do not pose risk to the environment.
Table 100. OrganoChlorine Pesticide Monitoring Data, CY 2018
Parameters
MONITORING STATIONS DENR Water
Quality
Guideline for
Class C Waters
(µg/L)
Naguilian
Bridge
Bagulin
Bridge
Caoayan
Bridge
Bauang
Bridge
Sakyud
SFC
4,4’-DDD ND ND ND ND ND No Guideline
4,4’-DDE ND ND ND ND ND No Guideline
4,4’-DDT ND ND ND ND ND No Guideline
Aldrin ND ND ND ND ND No Guideline
Alpha-BHC ND ND ND ND ND No Guideline
Alpha
Chlordane ND ND ND ND ND No Guideline
Beta-BHC ND ND ND ND ND No Guideline
Chlordane
(tech) ND ND ND ND ND No Guideline
Delta-BHC ND ND ND ND ND No Guideline
Dieldrin ND ND ND ND ND No Guideline
Endosulfan I ND ND ND ND ND No Guideline
Endosulfan II ND ND ND ND ND No Guideline
Endosulfan
Sulfate ND ND ND ND ND No Guideline
Endrin ND ND ND ND ND No Guideline
Endrin
Aldehyde ND ND ND ND ND No Guideline
Eldrin Ketone ND ND ND ND ND No Guideline
Gamma-BHC
(Lindane) ND ND ND ND ND No Guideline
Heptachlor ND ND ND ND ND No Guideline
Heptachlor
Epoxide ND ND ND ND ND No Guideline
Methoxychlor ND ND ND ND ND No Guideline
Toxaphene ND ND ND ND ND No Guideline
(ND)- not detected
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 121
Table 101. OrganoChlorine Pesticide Monitoring Data, CY 2019
Parameters STATIONS DENR Water
Quality
Guideline for
Class C
Waters (µg/L)
Naguilian
Bridge
Bagulin
Bridge
Caoayan
Bridge
Bauang
Bridge
Batan
Bridge
4,4’-DDD ND ND ND ND ND
No Guideline
4,4’-DDE ND ND ND ND ND
No Guideline
4,4’-DDT ND ND ND ND ND
No Guideline
Aldrin ND ND ND ND ND
No Guideline
Alpha-BHC ND ND ND ND ND No Guideline
Alpha
Chlordane ND ND ND ND ND
No Guideline
Beta-BHC ND ND ND ND ND No Guideline
Chlordane
(tech) ND ND ND ND ND
No Guideline
Delta-BHC ND ND ND ND ND No Guideline
Dieldrin ND ND ND ND ND
No Guideline
Endosulfan I ND ND ND ND ND No Guideline
Endosulfan II ND ND ND ND ND No Guideline
Endosulfan
Sulfate ND ND ND ND ND
No Guideline
Endrin ND ND ND ND ND No Guideline
Endrin
Aldehyde ND ND ND ND ND
No Guideline
Eldrin Ketone ND ND ND ND ND No Guideline
Gamma-BHC
(Lindane) ND ND ND ND ND
No Guideline
Heptachlor ND ND ND ND ND No Guideline
Heptachlor
Epoxide ND ND ND ND ND
No Guideline
Methoxychlor ND ND ND ND ND No Guideline
Toxaphene ND ND ND ND ND No Guideline
B.2.14. Organophosphorus Compounds (OPPs)
Table 102 and 103 shows the OrganoPhosphorous Compounds Monitoring Data for CY 2018 and CY
2019. The Monitoring Data reflected very low concentrations (not detected), below the DENR water
quality guideline for Class C waterbody. Results do not pose risk to the environment.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 122
Table 102. OrganoPhosphorus Compounds Monitoring Data, CY 2018
Parameters STATIONS DENR Water
Quality Guideline
for Class C
Waters (µg/L)
Naguilian
Bridge
Bagulin
Bridge
Caoayan
Bridge
Bauang
Bridge
Batan
Bridge
Azinphosmethyl ND ND ND ND ND No Guideline
Bolstar ND ND ND ND ND No Guideline
Chlorpyrifos ND ND ND ND ND No Guideline
Coumaphos ND ND ND ND ND No Guideline
Demeton-O ND ND ND ND ND No Guideline
Diazinon ND ND ND ND ND No Guideline
Dichlorvos ND ND ND ND ND No Guideline
Disulfoton ND ND ND ND ND No Guideline
Ethoprop ND ND ND ND ND No Guideline
Fenchlorphos ND ND ND ND ND No Guideline
Fensulfothion ND ND ND ND ND No Guideline
Fenthion ND ND ND ND ND No Guideline
Malathion ND ND ND ND ND No Guideline
Merphos ND ND ND ND ND No Guideline
Methyl parathion ND ND ND ND ND No Guideline
Mervinphos ND ND ND ND ND No Guideline
Phorate ND ND ND ND ND No Guideline
Tetrachlorvinphos ND ND ND ND ND No Guideline
Tokuthion ND ND ND ND ND No Guideline
Trichloronate ND ND ND ND ND No Guideline
Table 103. OrganoPhosphorus Compounds Monitoring Data, CY 2019
Parameters STATIONS DENR Water
Quality Guideline
for Class C
Waters (µg/L)
Naguilian
Bridge
Bagulin
Bridge
Caoayan
Bridge
Bauang
Bridge
Batan
Bridge
Azinphosmethyl ND ND ND ND ND No Guideline
Bolstar ND ND ND ND ND No Guideline
Chlorpyrifos ND ND ND ND ND No Guideline
Coumaphos ND ND ND ND ND No Guideline
Demeton-O ND ND ND ND ND No Guideline
Diazinon ND ND ND ND ND No Guideline
Dichlorvos ND ND ND ND ND No Guideline
Disulfoton ND ND ND ND ND No Guideline
Ethoprop ND ND ND ND ND No Guideline
Fenchlorphos ND ND ND ND ND No Guideline
Fensulfothion ND ND ND ND ND No Guideline
Fenthion ND ND ND ND ND No Guideline
Malathion ND ND ND ND ND No Guideline
Merphos ND ND ND ND ND No Guideline
Methyl parathion ND ND ND ND ND No Guideline
Mervinphos ND ND ND ND ND No Guideline
Phorate ND ND ND ND ND No Guideline
Tetrachlorvinphos ND ND ND ND ND No Guideline
Tokuthion ND ND ND ND ND No Guideline
Trichloronate ND ND ND ND ND No Guideline
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 123
B.3. LOWER AMBURAYAN RIVER SYSTEM – WATER QUALITY MANAGEMENT
AREA (LARS-WQMA)
The Lower Amburayan River System (LARS) Water Quality Management Area (WQMA) was
officially designated pursuant to DENR Administrative Order No. 03 series of 2018 dated January 26,
2018. The LARS-WQMA covers three municipalities in the province La Union and six municipalities
in the province of Ilocos Sur that are within and share the watershed of the Lower Amburayan River
System. These are the municipalities of Bangar, Santol & Sudipen in La Union and Alilem,
Cervantes, Sigay, Sugpon, Suyo & Tagudin in Ilocos Sur.
There are 76 barangays within the Lower Amburayan River System, with a total of 15,121 households
and a population of 73,730 as of 2015.
The Lower Amburayan River Water Quality Management Area falls inside the geographical
coordinates of 120º23’53.44” & 120º42’04.27” east longitudes and 16º37’07.06” & 17º04’43.94”
north latitudes. It is bounded in the north by the municipalities of Santa Cruz, Sigay and Del Pilar.
The eastern part is bounded by the municipalities of Cervantes, Bakun and Kibungan; on the south are
the municipalities of Kapangan and San Gabriel; and on its west, are the municipalities of Santol,
Sudipen and Tagudin.
The headwater of the Lower Amburayan River System originates from the province of Benguet. Its
upstream location is in Sigay, Cervantes, Sugpon, Suyo and Santol in the north east, while
downstream portions are in Bangar, Tagudin, Alilem and Sudipen in the north west.
The river has been officially classified as Class C water body in 1997.
The annual averages for the parameters pH, DO, BOD and TSS revealed that the water quality from
CY 2014 to CY 2019 met their respective DENR Water Quality Guidelines for Class C water
classification.
The CY 2019 annual averages of the monitoring data for the parameters BOD, DO, pH, Color,
Nitrate, Phosphate and Chloride revealed that all monitoring stations met their respective DENR
Water Quality Guideline for Class C water classification.
The comparison of the geometric mean for Fecal Coliform from all monitoring stations of the LARS
WQMA from CY 2015 to CY 2019 recorded that the Geometric mean of the results of monitoring for
CY 2015 showed that only SUG-1 station exceeded the DENR Water Quality Guideline for Class C
water classification of 200 MPN/100ml. In CY 2016, the results of Fecal Coliform shows that all
monitoring stations met the water quality guideline. The monitoring results in CY 2017 revealed that
all monitoring stations did not meet the DENR Water Quality Guideline showing an increase in Fecal
Coliform concentration. The annual Geometric mean for CY 2018 and CY 2019 recorded that all
stations exceeded the DENR Water Quality Guideline except ALI-1 station in CY 2018.
For the parameters Trace Metals, Inorganic Compounds, OrganoChlorine Pesticides and
OrganoPhosphorous Pesticides for CY 2018 and CY 2019, the monitoring data revealed that all
representative stations met their corresponding Water Quality Guideline. The OrganoChlorine
Pesticides and OrganoPhosphorous Pesticides recorded non-detection for traces of pesticides for the
two (2) consecutive years.
MONITORING RESULTS OF LOWER AMBURAYAN RIVER SYSTEM
Nine stations were established for the water quality monitoring of the river system. Three of the nine
stations are located in the Province of La Union and the remaining stations are located in the Province
of Ilocos Sur. Table 75 presents the monitoring stations of the Lower Amburayan River System
WQMA.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 124
Since May 2015, monitoring was conducted and continued to be done during the first year after the
WQMA was officially designated. As per DAO-2016-08, water quality monitoring for the primary
parameters will be continuously monitored for the whole year.
The parameters monitored for CY 2015 as baseline are: potential of Hydrogen (pH), Dissolved
Oxygen (DO), five-day Biochemical Oxygen Demand (BOD5), Total Suspended Solids (TSS), Total
Coliform and Fecal Coliform. Samples from designated monitoring stations were analysed at EMB
Region 1 Laboratory. Other primary parameters such as Nitrate, Phosphate, Color, Temperature and
Chloride were also included starting January, CY 2019 in compliance with DAO 2016-08.
Table 104. The Monitoring stations of the Lower Amburayan River System WQMA
Station
ID Nos. Location Municipality
Initial Date
of sampling
GPS Locations
Latitude Longitude
SUY-1 Urzadan, Suyo Suyo,
Ilocos Sur May 2015 120°31’18.99” N 16°58’45.68” E
SUY-2 Poblacion, Suyo Suyo,
Ilocos Sur July 2015 120°30’29.89” N 16°58’48.08” E
ALI-3 Amilongan B,
Alilem
Alilem,
Ilocos Sur May 2015 120°34’53.84” N 16°51’06.26” E
ALI-4 Poblacion,
Alilem
Alilem,
Ilocos Sur Jan 2016 120°31’53.90” N 16°53’03.40” E
SUG-1 Balbalayang,
Sugpon
Sugpon,
Ilocos Sur May 2015 120°32’04.74” N 16°49’03.76” E
SUD-1 Duplas-Bulaan,
Sudipen
Sudipen,
La Union May 2015 120°29’54.32” N 16°49’49.67” E
ALI-1 Dalawa, Alilem Alilem,
Ilocos Sur May 2015 120°30’32.77” N 16°50’57.14” E
SUD-2
Doña Alicia
Memorial
Bridge, Sudipen
Sudipen,
La Union May 2015 120°27’43.97” N 16°54’48.34” E
BAN-2 Ma. Cristina
West, Bangar
Bangar,
La Union May 2015 120°25’45.54” N 16°54’01.27” E
The results of the water quality monitoring of the nine (9) monitoring stations in the Lower
Amburayan River System Water Quality Management Area for 2019 are to wit:
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 125
B.3.1. Potential of Hydrogen (pH)
Table 105 shows the Potential of Hydrogen (pH) Monitoring Data for CY 2019. The monitoring data
revealed that all monitoring stations met the DENR Water Quality Guideline of 6.5-9.0 pH range.
Moroever, the annual average for all the monitoring stations met the DENR Water Quality Guideline.
Table 105. pH Monitoring Data, CY 2019
(*) Dried-up river bed
(-) Inaccessibility of monitoring station
(--) Prescribed Frequency of Water Quality Monitoring (10 Months) as per DAO 2016-08 has already
been met
Table 106 shows the Comparison of five (5) year annual averages for Potential of Hydrogen (pH)
monitoring data. Tabulated data reflected that the yearly averages from CY 2016 to CY 2019 are
within the DENR guideline for Class C water classification of 6.5 to 9.0. Most stations recorded
exceedances in CY 2015. The pH recorded values showed improvements from CY 2016 to CY 2019.
Table 106. Comparison of five (5) year annual average for Potential of Hydrogen (pH)
Stations Locations Potential of Hydrogen (pH)
CY 2015 CY 2016 CY 2017 CY 2018 CY 2019
SUY-1 Urzadan, Suyo 5.63 7.1 8.4 8.2 8.1
SUY-2 Poblacion, Suyo 5.79 7.3 8.4 8.4 8.2
ALI-3 Amilongan B, Alilem 5.40 6.6 8.4 8.1 8.1
ALI-4 Poblacion, Alilem 5.57 6.8 8.4 8.3 8.2
SUG-1 Balbalayang, Sugpon 5.50 7.2 8.2 8.2 8.1
SUD-1 Duplas-Bulaan, Sudipen 5.94 6.9 8.1 8.3 8.3
ALI-1 Dalawa, Alilem 5.80 7.0 8.3 8.1 8.1
SUD-2 Doña Alicia Memorial Bridge, Sudipen 6.04 7.5 8.2 8.2 8.0
BAN-2 Ma. Cristina West, Bangar 5.66 7.1 8.3 8.3 8.0
DENR Water Quality Guideline for Class “C”
Water Classification 6.5-9.0
STATIO
N
I.D
NAME OF STATION
Potential of Hydrogen (pH)
Jan Feb Ma
r Apr
Ma
y
Ju
n Jul Aug Sep Oct Nov Min
Ma
x Ave
SUY-1 Urzadan, Suyo 8.6 7.9 8.1 8.4 8.9 - 8.0 7.7 7.7 8.0 7.5 7.5 8.9 8.1
SUY-2 Poblacion, Suyo 8.2 8.3 8.4 8.6 8.7 - 8.2 7.8 7.5 7.7 - - 7.5 8.7 8.2
ALI-3 Amilongan B, Alilem 8.8 8.6 8.7 8.6 8.6 8 7.9 7.4 7.2 7.5 - - 7.2 8.8 8.1
ALI-4 Poblacion, Alilem 8.6 8.9 8.4 8.7 8.8 8 8.0 7.2 7.2 7.9 - - 7.2 8.9 8.2
SUG-1 Balbalayang, Sugpon 8.4 8.6 8.4 8.5 8.7 7.8 8.4 7.0 7.5 7.3 - - 7 8.7 8.1
SUD-1 Duplas-Bulaan, Sudipen 8.7 10.1 * * 8.5 8.1 8.4 7.7 7.8 8.0 7.81 7.7 10.1 8.3
ALI-1 Dalawa, Alilem 8.2 8.4 8.3 8.4 8.7 8 8.2 7.0 7.4 7.9 - - 7 8.7 8.1
SUD-2 Doña Alicia Memorial Bridge, Sudipen 8.6 8.2 8.6 8.7 8.7 - 7.9 7.5 7.0 7.1 7.7 7 8.7 8.0
BAN-2 Ma. Cristina West, Bangar 8.3 8.4 7.8 8.0 8.4 7.3 8.4 7.1 7.8 8.0 - - 7.1 8.4 8.0
DENR Water Quality Guideline Value for
Class " C " Waters 6.5-9.0
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 126
B.3.2. Dissolved Oxygen (DO)
Table 107 presents the Dissolved Oxygen (DO) Monitoring Data for CY 2019. As reflected from the
table, all stations met the DENR water quality guideline of ≥5 mg/L for Class C water classification.
The annual averages of the DO showed that all of the monitoring stations met the DENR water quality
guideline of ≥5.0 mg/L to sustain aquatic life.
Table 107. Dissolved Oxygen Monitoring Data, CY 2019
(*) Dried-up river bed
(-) Inaccessibility of monitoring station
(--) Prescribed Frequency of Water Quality Monitoring (10 Months) as per DAO 2016-08 has already
been met
Table 108 shows the comparison of five (5) years annual average for Dissolved Oxygen (DO)
monitoring in all nine (9) monitoring stations of the LARS-WQMA. The table shows that the water
quality from CY 2015 to CY 2019 constantly meets the DENR minimum Water Quality Guideline of
5.0 mg/L.
Table 108. Comparison of five (5) years annual average data for Dissolved Oxygen
Stations Locations
Dissolved Oxygen
CY 2015 CY 2016 CY
2017
CY 2018 CY 2019
SUY-1 Urzadan, Suyo 9.2 9.8 8.6 8.4 8.2
SUY-2 Poblacion, Suyo 8.2 10.4 9.9 8.7 8.3
ALI-3 Amilongan B, Alilem 9.4 14.5 8.7 8.5 8.8
ALI-4 Poblacion, Alilem 8.2 10.6 8.9 8.8 8.9
SUG-1 Balbalayang, Sugpon 8.5 13.5 8.4 8.5 8.4
SUD-1 Duplas-Bulaan, Sudipen 8.8 10.8 9.3 8.9 10.2
ALI-1 Dalawa, Alilem 9.9 12.2 9.0 8.2 8.5
SUD-2 Doña Alicia Memorial Bridge,
Sudipen 8.1 11.6 10.1 8.8 8.6
BAN-2 Ma. Cristina West, Bangar 9.3 15.4 9.3 8.3 8.2
DENR Water Quality Guideline for Class
“C” Water Classification ≥5.0 mg/L
STATIO
N
I.D
NAME OF STATION Dissolved Oxygen (DO) (mg/L)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Min Max Ave
SUY-1 Urzadan, Suyo 8.70 7.2 9.1 8.90 7.5 - 8.0 8.6 7.9 8.4 7.5 7.2 9.1 8.2
SUY-2 Poblacion, Suyo 8.70 8.5 8.2 8.40 8 - 7.7 8.6 8.1 8.8 - - 7.7 8.8 8.3
ALI-3 Amilongan B, Alilem 9.30 9.2 8.4 8.00 8.4 <10 8.8 8.6 8.6 8.9 - - 8 10 8.8
ALI-4 Poblacion, Alilem 9.10 10.4 8.4 8.60 8.1 <10 8.4 9.1 8.2 8.9 - - 8.1 10.4 8.9
SUG-1 Balbalayang, Sugpon 8.20 8.7 7.3 8.30 8.1 <10 8.3 8.2 8.0 9.1 - - 0 9.1 8.4
SUD-1 Duplas-Bulaan, Sudipen 12 20.6 * * 8.2 <10 7.8 7.9 7.5 8.7 8.9 7.5 20.6 10.2
ALI-1 Dalawa, Alilem 8.60 8.8 7.8 8.00 7.8 <10 8.4 8.9 8.2 8.5 - - 7.8 10 8.5
SUD-2 Doña Alicia Memorial Bridge,
Sudipen 9.10 8 9.2 9.90 8.1 - 8.0 8.9 8.3 8.6 7.7 7.7 9.9 8.6
BAN-2 Ma. Cristina West, Bangar 7.50 9.7 7 7.40 7.5 <10 8.2 8.6 7.7 8.7 - - 7 10 8.2
DENR Water Quality Guideline Value for
Class " C " Waters ≥5.0
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 127
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 128
B.3.3. Biochemical Oxygen Demand (BOD)
Table 109 shows the monitoring data of Biochemical Oxygen Demand (BOD for CY 2019. All nine
(9) monitoring stations met the DENR water quality guideline (BOD ≤7 mg/L) for Class C water
classification.
Table 109. Biochemical Oxygen Demand (BOD) Monitoring Data, CY 2019
(*) Dried-up river bed
(-) Inaccessibility of monitoring station
(--) Prescribed Frequency of Water Quality Monitoring (10 Months) as per DAO 2016-08 has already
been met
STATIO
N
I.D
NAME OF
STATION
Biochemical Oxygen Demand (BOD) (mg/L)
Jan Feb Mar Apr Ma
y
Ju
n Jul Aug Sep Oct Nov Min
Ma
x Ave
SUY-1 Urzadan, Suyo 3.00 <1 6 2.00 2 - <1 2 <1 <1 - 2 6 2
SUY-2 Poblacion, Suyo 3.00 <1 <1 3.00 2 - <1 <1 <1 1 - 1 3 2
ALI-3 Amilongan B,
Alilem 2.00 <1 2 2.00 5 2 <1 <1 <1 <1 - 2 5 2
ALI-4 Poblacion, Alilem 2.00 <1 2 <1 2 <1 <1 <1 <1 <1 - 2 2 1
SUG-1 Balbalayang,
Sugpon 3.00 3 2 2.00 5 2 <1 <1 <1 1 - 1 5 2
SUD-1 Duplas-Bulaan,
Sudipen 1.00 3 * * 2 4 <1 <1 <1 <1 - 1 4 2
ALI-1 Dalawa, Alilem 1.00 <1 2 2.00 2 3 <1 <1 <1 1 - 1 3 2
SUD-2
Doña Alicia
Memorial Bridge,
Sudipen
2.00 <1 3 2.00 5 - <1 <1 <1 <1 - 2 5 2
BAN-2 Ma. Cristina West,
Bangar 2.00 2 5 2.00 4 2 <1 <1 <1 1 - 1 5 2
DENR Water Quality Guideline
Value for
Class " C " Waters
≤7.0
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 129
Table 110 shows the comparison of five (5) years annual average for Biochemical Oxygen Demand
(BOD) data. The annual average for Biochemical Oxygen Demand from CY 2015 to CY 2019
revealed that the nine (9) monitoring stations met the DENR Water Quality Guideline of ≤7.0mg/L
for Class C water classification.
Table 110. Comparison of five (5) years annual average for Biochemical Oxygen Demand
Station
ID Locations
Biochemical Oxygen Demand
CY
2015
CY
2016
CY
2017
CY
2018
CY
2019
SUY-1 Urzadan, Suyo 2 1 2 2 2
SUY-2 Poblacion, Suyo 2 2 2 2 2
ALI-3 Amilongan B, Alilem 1 1 1 2 2
ALI-4 Poblacion, Alilem 2 2 2 3 1
SUG-1 Balbalayang, Sugpon 2 2 2 2 2
SUD-1 Duplas-Bulaan, Sudipen 2 2 2 2 2
ALI-1 Dalawa, Alilem 1 2 2 3 2
SUD-2 Doña Alicia Memorial Bridge, Sudipen 2 1 2 2 2
BAN-2 Ma. Cristina West, Bangar 1 2 2 3 2
DENR Water Quality Guideline for Class “C”
Water Classification ≤7 mg/L
B.3.4. Color
Based on the tabulated monitoring data for CY 2019 in Table 111, all nine (9) stations met the
maximum Color requirement of 75 TCU. The Color values range from 5 TCU to 15 TCU. Figure 51
is the graphical presentation for Color monitoring for the CY 2019.
Table 111. Color Monitoring Data, CY 2019
(*) Dried-up river bed
(-) Inaccessibility of monitoring station
(--) Prescribed Frequency of Water Quality Monitoring (10 Months) as per DAO 2016-08 has already
been met
STATIO
N
I.D
NAME OF STATION
Color (TCU)
Jan Feb Ma
r Apr
Ma
y
Ju
n Jul Aug Sep Oct Nov Min
Ma
x Ave
SUY-1 Urzadan, Suyo 5 <5 <5 <5 15 - 10 5 5 <5 <5 5 15 7
SUY-2 Poblacion, Suyo 5 5 <5 5 15 - 5 5 5 <5 - - 5 15 6
ALI-3 Amilongan B, Alilem 5 5 <5 5 5 <5 10 <5 5 <5 - - 5 10 6
ALI-4 Poblacion, Alilem 5 5 <5 10 5 5 10 <5 5 <5 - - 5 10 6
SUG-1 Balbalayang, Sugpon 5 <5 <5 5 10 5 10 5 5 <5 - - 5 10 6
SUD-1 Duplas-Bulaan, Sudipen 5 15 * * 15 10 10 5 5 5 <5 5 15 8
ALI-1 Dalawa, Alilem 5 <5 <5 5 5 5 5 5 5 <5 - - 5 5 5
SUD-2 Doña Alicia Memorial
Bridge, Sudipen 5 5 <5 <5 15 - 10 5 5 <5 <5 5 15 7
BAN-2 Ma. Cristina West, Bangar 5 5 <5 <5 10 10 5 <5 <5 <5 - - 5 10 6
DENR Water Quality Guideline Value
for Class " C " Waters ≤75 TCU
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 130
B.3.5. Temperature
Tables 112 shows the Temperature Monitoring Data for Class C Water Type. Several monitoring
stations did not meet the DENR Water Quality Guideline (25-31°C) for temperature.
Table 112. Temperature Monitoring Data, CY 2019
(*) Dried-up river bed
(-) Inaccessibility of monitoring station
(--) Defective Water Quality Checker
STATIO
N
I.D
NAME OF
STATION
Temperature (°C)
Jan Feb Ma
r Apr
Ma
y Jun Jul Aug Sep Oct Nov Min
Ma
x Ave
SUY-1 Urzadan, Suyo 31.0
4
29.5
8
31.3
2
33.9
6 28.5 -
26.1
4
27.3
6 24.33 -- --
24.3
3
33.9
6 29.03
SUY-2 Poblacion, Suyo 28.4
7
33.4
2
30.7
9
32.9
3
27.9
6 -
27.0
1
27.7
5 24.33 -- --
24.3
3
33.4
2 29.08
ALI-3 Amilongan B,
Alilem 29
29.8
1
27.7
2
29.3
8
31.0
5 --
24.1
3
23.4
6 22.03 -- --
22.0
3
31.0
5 27.07
ALI-4 Poblacion, Alilem 28.5
4
28.2
7
29.1
1
29.6
9 32.5 --
24.8
7
23.5
2 22.75 -- --
22.7
5 32.5 27.41
SUG-1 Balbalayang,
Sugpon 29.3
26.8
3
28.7
7
31.4
5
27.8
4
29.7
9
28.1
5
25.9
5 23.8 -- -- 23.8
31.4
5 27.99
SUD-1 Duplas-Bulaan,
Sudipen
26.8
9
26.8
8 * * 29.7
30.9
2
28.9
5 27.2 24.97 -- --
24.9
7
30.9
2 27.93
ALI-1 Dalawa, Alilem 28.9
5
25.6
8
29.8
2
31.1
4
30.5
2 --
25.7
9
26.0
7 23.89 -- --
23.8
9
31.1
4 27.73
SUD-2
Doña Alicia
Memorial Bridge,
Sudipen
29.8
5
28.5
3
31.6
7
33.9
4
30.1
8 -
26.6
3
25.5
1 24.52 -- --
24.5
2
33.9
4 28.85
BAN-2 Ma. Cristina West,
Bangar
30.5
3 30.8
28.7
8
30.3
9
31.2
9
29.9
7
26.9
9
25.3
6 24.02 -- --
24.0
2
31.2
9 28.68
DENR Water Quality
Guideline Value for
Class " C " Waters
25-31°C
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 131
B.3.6. Nitrate
Table 113 shows the Nitrate Monitoring Data CY 2019 for the nine (9) established monitoring
stations of the Lower Amburayan River System. As gleaned from the table, the Nitrate results
revealed that all monitoring station met the DENR Water Quality Guideline of ≤7 mg/L for Class C
water classification.
Table 113. Nitrate Monitoring Data, CY 2019
(*) Dried-up river bed
(-) Inaccessibility of monitoring station
(--) Prescribed Frequency of Water Quality Monitoring (10 Months) as per DAO 2016-08 has already
been met
STATIO
N
I.D
NAME OF
STATION
Nitrate (mg/L)
Jan Feb Mar Apr May Ju
n Jul Aug Sep Oct Nov Min
Ma
x Ave
SUY-1 Urzadan, Suyo 0.0
6 0.08 0.06 <0.05 0.57 - <0.05 0.12
0.0
9 <0.05 <0.05 0.05 0.57 0.12
SUY-2 Poblacion, Suyo 0.0
5 <0.05 0.05 <0.05 0.5 - 0.09 0.12 0.1 <0.05 - - 0.05 0.5 0.12
ALI-3 Amilongan B,
Alilem
0.3
6 0.19 <0.05 0.48 0.4
0.3
6 0.23 0.61
0.6
2 0.31 - - 0.05 0.62 0.36
ALI-4 Poblacion, Alilem 0.2
0 <0.05 0.05 0.55 0.31 0.3 0.21 0.47 0.5 0.32 - - 0.05 0.55 0.30
SUG-1 Balbalayang,
Sugpon
0.2
2 0.11 0.09 0.17 0.38
0.4
7 0.39 0.63
0.6
6 0.45 - - 0.09 0.66 0.36
SUD-1 Duplas-Bulaan,
Sudipen
0.0
7 <0.05 * * 0.47
0.0
8 0.09 0.45
0.2
5 <0.05 0.07 0.05 0.47 0.18
ALI-1 Dalawa, Alilem 0.2
2 0.11 0.09 0.22 0.33
0.3
3 0.25 0.46
0.5
6 0.39 - - 0.09 0.56 0.30
SUD-2
Doña Alicia
Memorial Bridge,
Sudipen
0.2
2 0.23 0.33 0.05 0.39 - 0.10 0.20
0.1
6 0.05 0.18 0.05 0.39 0.19
BAN-2 Ma. Cristina
West, Bangar
0.2
5 0.12 0.18 0.16 -
0.3
3 0.26 0.56
0.4
9 0.30 - - 0.12 0.56 0.29
DENR Water Quality
Guideline Value for Class "
C " Waters
≤7.0 mg/L
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 132
B.3.7. Phosphate
Table 114 shows the Phosphate Monitoring Data CY 2019 for the nine (9) established monitoring
stations of the Lower Amburayan River System. As gleaned from the table, the Phosphate data
revealed that all monitoring stations met the DENR Water Quality Guideline of ≤0.5 mg/L for Class C
water classification.
Table 114. Phosphate Monitoring Data, CY 2019
(*) Dried-up river bed
(-) Inaccessibility of monitoring station
(--) Prescribed Frequency of Water Quality Monitoring (10 Months) as per DAO 2016-08 has already
been met
STATIO
N
I.D
NAME OF
STATION
Phosphate (mg/L)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Min Ma
x Ave
SUY-1 Urzadan, Suyo 0.0
5
<0.0
5
<0.0
5
<0.0
5
<0.0
5 -
<0.0
5
<0.0
5
<0.0
5
<0.0
5
<0.0
5 0.05 0.05 0.05
SUY-2 Poblacion, Suyo 0.0
5
<0.0
5
<0.0
5
<0.0
5
<0.0
5 -
<0.0
5
<0.0
5
<0.0
5
<0.0
5 - - 0.05 0.05 0.05
ALI-3 Amilongan B,
Alilem
0.0
5
<0.0
5
<0.0
5
<0.0
5
<0.0
5
<0.0
5
<0.0
5 0.20
<0.0
5
<0.0
5 - - 0.05 0.2 0.07
ALI-4 Poblacion, Alilem 0.0
5
<0.0
5
<0.0
5
<0.0
5
<0.0
5
<0.0
5
<0.0
5 0.17
<0.0
5
<0.0
5 - - 0.05 0.17 0.06
SUG-1 Balbalayang,
Sugpon
0.0
5
<0.0
5
<0.0
5
<0.0
5
<0.0
5
<0.0
5
<0.0
5 0.43 0.05
<0.0
5 - - 0.05 0.43 0.09
SUD-1 Duplas-Bulaan,
Sudipen
0.0
5
<0.0
5 * * 0.08
<0.0
5
<0.0
5 0.17
<0.0
5
<0.0
5
<0.0
5 0.05 0.17 0.07
ALI-1 Dalawa, Alilem 0.0
5
<0.0
5
<0.0
5
<0.0
5
<0.0
5
<0.0
5
<0.0
5 0.19 0.06
<0.0
5 - - 0.05 0.19 0.07
SUD-2
Doña Alicia
Memorial Bridge,
Sudipen
0.0
5
<0.0
5
<0.0
5
<0.0
5
<0.0
5 -
<0.0
5 0.08
<0.0
5
<0.0
5
<0.0
5 0.05 0.08 0.05
BAN-2 Ma. Cristina West,
Bangar
0.0
5
<0.0
5
<0.0
5
<0.0
5
<0.0
5
<0.0
5
<0.0
5 0.32
<0.0
5
<0.0
5 - - 0.05 0.32 0.08
DENR Water Quality
Guideline Value for Class " C
" Waters
≤0.5 mg/L
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 133
B.3.8. Chloride
Table 115 shows the Chloride Monitoring Data CY 2019 for the nine (9) established monitoring
stations of the Lower Amburayan River System. As gleaned from the table, the Chloride results
revealed that all monitoring station met the DENR Water Quality Guideline of ≤350 mg/L for Class C
water classification.
Table 115. Chloride Monitoring Data, CY 2019
(*) Dried-up river bed
(-) Inaccessibility of monitoring station
(--) Prescribed Frequency of Water Quality Monitoring (10 Months) as per DAO 2016-08 has already
been met
STATIO
N
I.D
NAME OF
STATION
Chloride (mg/L)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Min Ma
x Ave
SUY-1 Urzadan, Suyo <10 <10 <10 <10 <10 - <10 <10 <10 <10 <10 10 10 10
SUY-2 Poblacion, Suyo <10 <10 <10 <10 <10 - <10 <10 <10 <10 - - 10 10 10
ALI-3 Amilongan B,
Alilem <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 - - 10 10 10
ALI-4 Poblacion, Alilem <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 - - 10 10 10
SUG-1 Balbalayang,
Sugpon <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 - - 10 10 10
SUD-1 Duplas-Bulaan,
Sudipen <10 <10 * * <10 <10 <10 <10 <10 <10 <10 10 10 10
ALI-1 Dalawa, Alilem <10 <10 <10 20.0
0 <10 <10 <10 <10 <10 <10 - - 10 20 11
SUD-2
Doña Alicia
Memorial Bridge,
Sudipen
<10 <10 <10 <10 <10 - <10 <10 <10 <10 <10 10 10 10
BAN-2 Ma. Cristina West,
Bangar <10 <10 <10 <10 <10 <10 <10 <10 <10 <10 - - 10 10 10
DENR Water Quality
Guideline Value for Class " C
" Waters
≤350 mg/L
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 134
B.3.9. Total Suspended Solids (TSS)
Table 116 presents the Total Suspended Solids Monitoring Data for CY 2019. All monitoring stations
except stations ALI-3, ALI-4, ALI-1, SUG-1 and BAN-2 in the month of August met the DENR
water quality guideline (TSS ≤80 mg/L) for the Total Suspended Solids parameter.
Table 116. Total Suspended Solids Monitoring Data, CY 2019
(*) Dried-up river bed
(-) Inaccessibility of monitoring station
(--) Prescribed Frequency of Water Quality Monitoring (10 Months) as per DAO 2016-08 has already
been met
B.3.10. Fecal Coliform
Results of the Fecal Coliform Monitoring data is presented in Table 117. The annual geometric mean
shows that all monitoring stations did not meet the DENR water quality guideline of 200 MPN/100
ml.
STATIO
N
I.D
NAME OF
STATION
Total Suspended Solids (mg/L)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Min Ma
x Ave
SUY-1 Urzadan, Suyo 2 3 3 <2 <2 - 8 25 2 3 3 2 25 5
SUY-2 Poblacion, Suyo 2 <2 54 3 14 - 8 22 4 <2 - - 2 54 12
ALI-3 Amilongan B,
Alilem 2 4 2 11 64 21 16 314 16 <2 - - 2 314 45
ALI-4 Poblacion, Alilem 2 2 2 16 22 6 31 245 3 3 - - 2 245 33
SUG-1 Balbalayang,
Sugpon 3 3 2 <2 25 10 9 776 40 15 - - 2 776 12
SUD-1 Duplas-Bulaan,
Sudipen 1 3 * * 24 4 16 7 9 <2 <2.0 1 24 8
ALI-1 Dalawa, Alilem 8 4 2 14 21 13 35 454 30 11 - - 2 454 59
SUD-2
Doña Alicia
Memorial Bridge,
Sudipen
2 5 7 4 <80 - 12 73 8 <2 <2.0 2 80 20
BAN-2 Ma. Cristina West,
Bangar 12 21 11 7 20 22 19 713 17 6 - - 6 713 85
DENR Water Quality
Guideline
Value for Class " C " Waters
≤80 mg/L
REGIONAL STATE OF BROWN ENVIRONMENT 2019 135
Table 117. Fecal Coliform Monitoring Data, CY 2019
Station
ID
NAME OF
STATION
PARAMETER
Min Max Geomean
Fecal Coliform (FC)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
SUY-1 Urzadan,
Suyo 280 330 23 2400 54000 - 1300 21000 16000 1100 9200 5400 23 21000 2224
SUY-2 Poblacion,
Suyo 170 790 79 330 24000 - 790 160000 5400 3500 - - 79 160000 1802
ALI-3 Amilongan
B, Alilem 49 130 23 3500 35000 3500 490 320 94 2400 16000 16000 49 35000 954
ALI-4 Poblacion,
Alilem 230 490 110 3500 92000 170 1100 790 9200 490 2400 3500 110 92000 1295
SUG-1 Balbalayang,
Sugpon 79 46 23 230 24000 170 790 79 700 2400 2400 5400 46 24000 467
SUD-1
Duplas-
Bulaan,
Sudipen
790 110 * * >160000 2400 4600 9200 490 5400 230 - 110 160000 2118
ALI-1 Dalawa,
Alilem 23 79 280 2400 24000 790 2400 35000 790 2400 3500 35000 23 35000 1664
SUD-2
Doña Alicia
Memorial
Bridge,
Sudipen
790 70 33 22 35000 - 3500 43000 4600 2200 5400 5400 22 43000 1456
BAN-2
Ma. Cristina
West,
Bangar
24000 170 33 16000 >160000 460 490 330 2100 2200 1300 2400 33 160000 1637
DENR Water Quality
Guideline for Class
“C” Water
Classification
200 MPN/100ml
(*) Dried-up river bed
(-) Inaccessibility of monitoring station
--) Prescribed Frequency of Water Quality Monitoring (10 Months) as per DAO 2016-08 has already been met
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 136
Table 118 displays the comparison of the five (5) years annual geometric mean for Fecal Coliform
(FC). The Geometric mean of the results of monitoring for CY 2015 showed that all nine (9)
monitoring stations except SUG-1 station met the DENR Water Quality Guideline for Class C waters
of 200 MPN/100mL. In CY 2016, the results of Fecal Coliform shows that some of the monitoring
stations displayed a slight increase but still met the DENR Water Quality Guideline for Class C water
classification as compared to the results obtained in CY 2015. The results in CY 2017 to CY 2019
revealed that all monitoring stations did not meet the DENR Water Quality Guideline. Alarming
values were recorded from CY 2017 to CY 2019 with increasing trend in concentrations.
Table 118. Comparison of five (5) years annual geometric mean for Fecal Coliform (FC)
Stations Locations
Fecal Coliform
CY
2015
CY
2016
CY
2017
CY
2018
CY
2019
% increase/ decrease
from CY 2018- CY 2019
SUY-1 Urzadan, Suyo 74 97 1767 342 2224 550.29 % inc.
SUY-2 Poblacion,
Suyo 61 78 1903 257 1802 601.17 % inc
ALI-3 Amilongan B,
Alilem 67 138 1663 391 954 143.99 % inc
ALI-4 Poblacion,
Alilem 70 222 1237 503 1295 157.45 % inc
SUG-1 Balbalayang,
Sugpon 371 97 2635 294 467 58.84 % inc
SUD-1
Duplas-
Bulaan,
Sudipen
117 86 2687 658 2118 221.88 % inc
ALI-1 Dalawa,
Alilem 170 84 1537 148 1664 1024.32 % inc
SUD-2
Doña Alicia
Memorial
Bridge,
Sudipen
109 122 841 938 1456 55.22% inc
BAN-2 Ma. Cristina
West, Bangar 127 79 1580 696 1637 135.20 % inc
DENR Water Quality
Guideline for Class “C”
Water Classification
200 MPN/ 100 ml
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 137
Table 119 is the annual averages of the ten (10) primary parameters monitored for CY 2019. All the
averages are with the Water Quality Guideline for C waters except for the Geomean for Fecal
Coliform.
Table 119. ANNUAL AVERAGES OF THE PRIMARY PARAMETERS, CY 2019
Station
ID
NAME OF
STATION
PARAMETERS
Averages Geometric
Mean
pH DO BOD NO3-
N PO4 Cl
- Color Temp TSS (FC)
SUY-1 Urzadan,
Suyo 8.1 8.2 2 0.12 0.05 10 7 29.03 5 2224
SUY-2 Poblacion,
Suyo 8.2 8.3 2 0.12 0.05 10 6 29.08 12 1802
ALI-3 Amilongan
B, Alilem 8.1 8.8 2 0.36 0.07 10 6 27.07 45 954
ALI-4 Poblacion,
Alilem 8.2 8.9 1 0.30 0.06 10 6 27.41 33 1295
SUG-1 Balbalayang,
Sugpon 8.1 8.4 2 0.36 0.09 10 6 27.99 12 467
SUD-1
Duplas-
Bulaan,
Sudipen
8.3 10.2 2 0.18 0.07 10 8 27.93 8 2118
ALI-1 Dalawa,
Alilem 8.1 8.5 2 0.30 0.07 11 5 27.73 59 1664
SUD-2
Doña Alicia
Memorial
Bridge,
Sudipen
8.0 8.6 2 0.19 0.05 10 7 28.85 20 1456
BAN-2
Ma. Cristina
West,
Bangar
8.0 8.2 2 0.29 0.08 10 6 28.68 85 1637
DENR Water Quality
Guideline for Class
“C” Water
Classification
6.0-
9.0
5.0
mg/L
7.0
mg/L
7.0
mg/L
0.5
mg/L
350
mg/L
75
TCU
25-31
°C
80.0
mg/L
200 MPN/
100
B.3.11. Trace Metals
Table 120 and Table 121 shows the results of the heavy metal analysis on various sampling points of
the LARS WQMA in CY 2018 and CY 2019, respectively.
a. Arsenic (As)
The results of monitoring in the six (6) established monitoring stations are far below
the water quality guideline of 0.05 mg/l Arsenic with values of less than 0.01 mg/L.
b. Cadmium (Cd)
The results of the Heavy Metal Analysis for Cadmium recorded less than 0.006 mg/L which
is far below the water quality guideline of 0.005 mg/L.
c. Chromium (Cr)
The six stations of the LARS WQMA that were tested for the presence of chromium obtained
results that are under the DENR water quality guideline standard of 0.05 mg/L.
d. Copper(Cu)
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 138
All six representative stations of the LARS-WQMA attained a value of <0.01mg/L. All are
within the DENR water quality guideline of 0.02 mg/L
e. Lead (Pb)
Six stations that are representative of each LGUs were tested for Lead Concentration, all six
stations yielded values that are less than 0.05 mg/L, the DENR Guideline for Lead.
f. Mercury
The representative stations all yielded <0.0001 mg/L values of mercury, they have met the
DENR water quality guideline of 0.002 mg/L.
g. Zinc(Zn)
The two (2) years monitoring data (CY 2018 and CY 2019) recorded <0.03 mg/L which are
far below the DENR Water Quality Guideline value of 2 mg/L.
Table 120. Heavy Metal Monitoring Data, CY 2018
Parameter
s
STATIONS DENR
Water
Quality
Guidelin
e for
Class C
Waters
(mg/L)
Amilonga
n, Alilem
Dalawa,
Alilem
Balbalayan
g
Sugpon
Doña
Alicia
Memorial
Bridge,
Sudipen
Alzate,
Bangar
Poblacion
, Suyo
Arsenic
<0.01
(PASSED)
<0.01
(PASSED
)
<0.01
(PASSED)
<0.01
(PASSED
)
<0.01
(PASSED
)
<0.01
(PASSED
)
0.05
Cadmium
<0.006
(PASSED)
<0.006
(PASSED
)
<0.006
(PASSED)
<0.006
(PASSED
)
<0.006
(PASSED
)
<0.006
(PASSED
)
0.005
Chromium
<0.02
(PASSED)
<0.02
(PASSED
)
<0.02
(PASSED)
<0.02
(PASSED
)
<0.02
(PASSED
)
<0.02
(PASSED
)
0.05
Copper
<0.01
(PASSED)
<0.01
(PASSED
)
<0.01
(PASSED)
<0.01
(PASSED
)
<0.01
(PASSED
)
<0.01
(PASSED
)
0.01
Lead
<0.05
(PASSED)
<0.05
(PASSED
)
<0.05
(PASSED)
<0.05
(PASSED
)
<0.05
(PASSED
)
<0.05
(PASSED
)
0.05
Zinc
<0.03
(PASSED)
<0.03
(PASSED
)
<0.03
(PASSED)
<0.03
(PASSED
)
<0.03
(PASSED
)
<0.03
(PASSED
)
2
Mercury
<0.0001
(PASSED)
<0.0001
(PASSED
)
<0.0001
(PASSED)
<0.0001
(PASSED
)
<0.0001
(PASSED
)
<0.0001
(PASSED
)
0.002
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 139
Table 121. Heavy Metal Monitoring Data, CY 2019
B.3.12. Inorganic Compounds
Table 122 shows the results of Inorganic Compounds Monthly Data for CY 2018 and CY 2019.
Ammonia
Most of the established monitoring stations met the DENR water quality guideline value of 0.05
mg/L except staion SUD-2.
Cyanide, Free
The results of the analysis for the presence of free Cyanide reveals that the six (6) monitoring
stations met the DENR water quality guideline of 0.1 mg/L.
Nitrates
The results of the analysis for the presence of Nitrates show that the six (6) monitoring stations
met the DENR water quality guideline of 7.0 mg/L.
Phosphates
The results of the analysis for the presence of Phosphates showed that the six (6) monitoring
stations met the DENR water quality guideline of 0.5 mg/L.
Parameters
STATIONS DENR
Water
Quality
Guideline
for Class
C Waters
(mg/L)
Amilongan,
Alilem
Dalawa,
Alilem
Balbalayang
Sugpon
Doña
Alicia
Memorial
Bridge,
Sudipen
Ma.
Cristina
West,
Bangar
Urzadan,
Suyo
Arsenic <0.01
(PASSED) <0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED) 0.05
Cadmium <0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED) 0.005
Chromium <0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED) 0.05
Copper <0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED) 0.01
Lead <0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED) 0.05
Zinc <0.03
(PASSED)
<0.03
(PASSED)
<0.03
(PASSED)
<0.03
(PASSED)
<0.03
(PASSED)
<0.03
(PASSED) 2
Mercury <0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED) 0.002
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 140
Table 122. Inorganic Compounds Monitoring Data, CY 2018 and CY 2019
Paramete
rs
MONITORING STATIONS
DENR
Water
Quality
Guideline
for Class
C Waters
(mg/L)
ALI-3
Amilongan
,
Alilem
ALI-1
Dalawa,
Alilem
SUG-1
Balbalayang,
Sugpon
SUD-2
Doña
Alicia
Memorial
Bridge,
Sudipen
BAN-
1
Alzate,
Banga
r
BAN-
2
Ma.
Cristin
a
West,
Banga
r
SUY-2
Poblacio
n,
Suyo
SUY-1
Urzada
n,
Suyo
CY
2018
CY
2019
CY
2018
CY
2019
CY
2018
CY
2019
CY
2018
CY
2019
CY
2018
CY
2019
CY
2018
CY
2019
Ammonia 0.008 0.008 <0.00
3
<0.00
3 <0.003
<0.00
3 0.07 0.07 0.04 0.04 <0.003 <0.003 0.05
Cyanide,
Free
<0.0
2
<0.0
2 <0.02 <0.02 <0.05 <0.05 0.04 0.04 <0.02 <0.02 <0.05 <0.05 0.1
Nitrate 1.7 1.7 2.1 0.30 <0.000
2 0.36 1.1 0.19 0.1 0.29 <0.0002 0.12 7
Phosphate 0.1 0.1 0.2 0.07 <0.007 0.09 0.09 0.05 0.07 0.08 <0.007 0.05 0.5
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 141
B.3.13. OrganoChlorine Pesticides (OCPs)
Table 123 and 124 shows the OrganoChlorine Pesticide Monitoring Data for CY 2018 and CY 2019.
Results of baseline monitoring reflected very low concentrations (not detected), below the DENR
water quality guideline for Class C waterbody. Results do not pose risk to the environment.
Table 123. OrganoChlorine Pesticide Monitoring Data, CY 2018
Parameters
MONITORING STATIONS DENR Water
Quality
Guideline for
Class C Waters
(µg/L)
Amilongan,
Alilem
Dalawa,
Alilem
Balvbalayang,
Sugpon
Doña Alicia
Memorial
Bridge,
Sudipen
Alzate,
Bangar
Poblacion,
Suyo
4,4’-DDD ND ND ND ND ND ND No Guideline
4,4’-DDE ND ND ND ND ND ND No Guideline
4,4’-DDT ND ND ND ND ND ND No Guideline
Aldrin ND ND ND ND ND ND No Guideline
Alpha-BHC ND ND ND ND ND ND No Guideline
Alpha
Chlordane ND ND ND ND ND ND No Guideline
Beta-BHC ND ND ND ND ND ND No Guideline
Chlordane
(tech) ND ND ND ND ND ND No Guideline
Delta-BHC ND ND ND ND ND ND No Guideline
Dieldrin ND ND ND ND ND ND No Guideline
Endosulfan I ND ND ND ND ND ND No Guideline
Endosulfan II ND ND ND ND ND ND No Guideline
Endosulfan
Sulfate ND ND ND ND ND ND No Guideline
Endrin ND ND ND ND ND ND No Guideline
Endrin
Aldehyde ND ND ND ND ND ND No Guideline
Eldrin Ketone ND ND ND ND ND ND No Guideline
Gamma-BHC
(Lindane) ND ND ND ND ND ND No Guideline
Heptachlor ND ND ND ND ND ND No Guideline
Heptachlor
Epoxide ND ND ND ND ND ND No Guideline
Methoxychlor ND ND ND ND ND ND No Guideline
Toxaphene ND ND ND ND ND ND No Guideline
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 142
Table 124. OrganoChlorine Pesticide Monitoring Data, CY 2019
B.3.14. Organophosphorus Compounds (OPPs)
Table 125 and 126 shows the OrganoPhosphorous Compounds Monitoring Data for CY 2018 and CY
2019. The Monitoring Data reflected very low concentrations (not detected), below the DENR water
quality guideline for Class C waterbody. Results do not pose risk to the environment.
Parameters
MONITORING STATIONS DENR Water
Quality
Guideline for
Class C Waters
(µg/L)
Amilongan,
Alilem
Dalawa,
Alilem
Balbalayang,
Sugpon
Doña Alicia
Memorial
Bridge,
Sudipen
Ma.
Cristina
West,
Bangar
Urzadan,
Suyo
4,4’-DDD ND ND ND ND ND ND No Guideline
4,4’-DDE ND ND ND ND ND ND No Guideline
4,4’-DDT ND ND ND ND ND ND No Guideline
Aldrin ND ND ND ND ND ND No Guideline
Alpha-BHC ND ND ND ND ND ND No Guideline
Alpha
Chlordane ND ND ND ND ND ND No Guideline
Beta-BHC ND ND ND ND ND ND No Guideline
Chlordane
(tech) ND ND ND ND ND ND No Guideline
Delta-BHC ND ND ND ND ND ND No Guideline
Dieldrin ND ND ND ND ND ND No Guideline
Endosulfan I ND ND ND ND ND ND No Guideline
Endosulfan II ND ND ND ND ND ND No Guideline
Endosulfan
Sulfate ND ND ND ND ND ND No Guideline
Endrin ND ND ND ND ND ND No Guideline
Endrin
Aldehyde ND ND ND ND ND ND No Guideline
Eldrin Ketone ND ND ND ND ND ND No Guideline
Gamma-BHC
(Lindane) ND ND ND ND ND ND No Guideline
Heptachlor ND ND ND ND ND ND No Guideline
Heptachlor
Epoxide ND ND ND ND ND ND No Guideline
Methoxychlor ND ND ND ND ND ND No Guideline
Toxaphene ND ND ND ND ND ND No Guideline
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 143
Table 125. OrganoPhosphorus Compounds Monitoring Data, CY 2018
Parameters
MONITORING STATIONS DENR Water
Quality
Guideline for
Class C Waters
(µg/L)
Amilongan,
Alilem
Dalawa,
Alilem
Balvbalayang,
Sugpon
Doña Alicia
Memorial
Bridge,
Sudipen
Alzate,
Bangar
Poblacion,
Suyo
Azinphosmethyl ND ND ND ND ND ND No Guideline
Bolstar ND ND ND ND ND ND No Guideline
Chlorpyrifos ND ND ND ND ND ND No Guideline
Coumaphos ND ND ND ND ND ND No Guideline
Demeton-O ND ND ND ND ND ND No Guideline
Diazinon ND ND ND ND ND ND No Guideline
Dichlorvos ND ND ND ND ND ND No Guideline
Disulfoton ND ND ND ND ND ND No Guideline
Ethoprop ND ND ND ND ND ND No Guideline
Fenchlorphos ND ND ND ND ND ND No Guideline
Fensulfothion ND ND ND ND ND ND No Guideline
Fenthion ND ND ND ND ND ND No Guideline
Malathion ND ND ND ND ND ND No Guideline
Merphos ND ND ND ND ND ND No Guideline
Methyl parathion ND ND ND ND ND ND No Guideline
Mervinphos ND ND ND ND ND ND No Guideline
Phorate ND ND ND ND ND ND No Guideline
Tetrachlorvinphos ND ND ND ND ND ND No Guideline
Tokuthion ND ND ND ND ND ND No Guideline
Trichloronate ND ND ND ND ND ND No Guideline
Table 126. OrganoPhosphorus Compounds Monitoring Data, CY 2019
Parameters
MONITORING STATIONS DENR Water
Quality
Guideline for
Class C Waters
(µg/L)
Amilongan,
Alilem
Dalawa,
Alilem
Balbalayang,
Sugpon
Doña Alicia
Memorial
Bridge,
Sudipen
Ma.
Cristina
West,
Bangar
Urzadan,
Suyo
Azinphosmethyl ND ND ND ND ND ND No Guideline
Bolstar ND ND ND ND ND ND No Guideline
Chlorpyrifos ND ND ND ND ND ND No Guideline
Coumaphos ND ND ND ND ND ND No Guideline
Demeton-O ND ND ND ND ND ND No Guideline
Diazinon ND ND ND ND ND ND No Guideline
Dichlorvos ND ND ND ND ND ND No Guideline
Disulfoton ND ND ND ND ND ND No Guideline
Ethoprop ND ND ND ND ND ND No Guideline
Fenchlorphos ND ND ND ND ND ND No Guideline
Fensulfothion ND ND ND ND ND ND No Guideline
Fenthion ND ND ND ND ND ND No Guideline
Malathion ND ND ND ND ND ND No Guideline
Merphos ND ND ND ND ND ND No Guideline
Methyl parathion ND ND ND ND ND ND No Guideline
Mervinphos ND ND ND ND ND ND No Guideline
Phorate ND ND ND ND ND ND No Guideline
Tetrachlorvinphos ND ND ND ND ND ND No Guideline
Tokuthion ND ND ND ND ND ND No Guideline
Trichloronate ND ND ND ND ND ND No Guideline
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 144
C. BEACH ECO-WATCH MONITORING
Beach eco-watch monitoring was conducted on a monthly basis for the monitoring of Total
Coliform (TC) and Fecal Coliform (FC) which are the basic parameters to determine the water quality
of bathing beaches. Generally, the results of water quality monitoring for the annual geometric mean
values are within the set DENR water quality guideline of 1000 MPN/ 100ml sample for Total
Coliform (TC) in the four (4) provinces. Generally, improvement in water quality was recorded for
CY 2019.
On the otherhand, most of the results of Fecal Coliform (FC) recorded that the annual geometric
mean values are within the DENR water quality guideline value of 100 MPN/100 mL sample. While,
exceedances were noted in five (5) monitoring stations in La Union, three (3) stations in Pangasinan
and one (1) station in Ilocos Sur.
For this year, this region sustained forty-one (41) established monitoring stations for bathing
beaches in Region 1 which are often visited by foreign and local tourists. There are twelve (12)
sampling stations established along the coastal waters of La Union and Pangasinan, eleven (11)
sampling stations in Ilocos Norte and six (6) stations in Ilocos Sur. Table 136 presents the Beach
Ecowatch monitoring stations established in Region 1.
Table 127. Beach Ecowatch monitoring stations established in Region 1.
Station
Nos.
Station
I.D
Station
Identification/
Landmark
Location
Coordinates
Latitude Longitude
PROVINCE OF LA UNION
1 SFC-1 San Francisco Beach San Fernando City, L.U 16°36’9”N 120°18’12”E
2 SFC-2 Carlatan Beach San Fernando City, L.U 16°37’52.80”N 120°18’52.93”E
3 SFC-3 Pagudpud Beach San Fernando City, L.U 16°34’47.62”N 120°19’0.64”E
4 SJ-1 Urbiztondo Beach San Juan, La Union 16°39’08.84”N 120°19’10”E
5 SJ-2 Ili Norte Beach San Juan, La Union 16°90’45”N 120°20’11”E
6 BAU-1 Paringao Beach Bauang, La Union 16°33’31.00”N 120°19’11.00”E
7 BAU-2 Pugo Beach Bauang, La Union 16°31’44.29”N 120°18’92.87”E
8 LUN-1 Phil. Coast Guard Luna, L.U 16°49’15.13”N 120°20’6.4”E
9 ARI-1 Paradiso Beach
Resort Aringay, La Union 16°23’52.09”N 120°19’26.44”E
10 AGO-1 Agoo-Damortis
National Park Agoo, L.U 16°21’5.88”N 120°20’15.67”E
11 AGO-2 San Nicolas Agoo, La Union 16°18’53.08”N 120°20’22.03”E
12 AGO-3 San Manuel Agoo, La Union 16°17’27.99”N 120°20’42.74”E
PROVINCE OF PANGASINAN
13 SF-1 Nibaliw East Beach San Fabian, Pang. 16°08’03.59”N 120°23’59.38”E
14 SF-2 Narvate Beach San Fabian, Pang. 16°7’16.94”N 120°23’9.60”E
15 DC-1 Tondaligan Beach Dagupan City 16°05’06.96”N 120°20’50.88”E
16 LING-1 Lingayen Beach Lingayen, Pang. 16°31’7.75”N 120°23’44.17”E
17 ALA-1 Quezon Island Alaminos City, Pang. 16°13’22.5”N 120°02’45.3”E
18 ALA-2 Governor's Island Alaminos City, Pang. 16°12’16.5”N 120°02’21.0”E
19 ALA-3 Children Island Alaminos City, Pang. 16°12’48.3”N 120°02’29.0”E
20 AG-1 Agno Beach Agno, Pangasinan 16°08’05.95”N 119°46’25.43”E
21 BOL-1 Patar Beach Bolinao, Pangasinan 16°18’03.70”N 119°46’47.08”E
22 BOL-2 Ilog Malino (S1) Bolinao, Pangasinan 16°21’21.00”N 119°48’44.00”E
23 BOL-3 Ilog Malino (S2) Bolinao, Pangasinan 16°20’52.51”N 119°48’12.22”E
24 DA-1 Dasol Beach Dasol, Pangasinan 15°53’45.99”N 119°53’20.04”E
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 145
Station
Nos.
Station
I.D
Station
Identification/
Landmark
Location
Coordinates
Latitude Latitude
PROVINCE OF ILOCOS NORTE
25 PAG-1 Burayoc Station Pagudpud, I.N 18°34’60.00”N 120°47’6.00”E
26 PAG-2 Saud Station 1 Pagudpud, I.N 18°35’20.00”N 120°47’9.00”E
27 PAG-3 Balaoi Station 2 Pagudpud, I.N 18°37’51.00”N 120°51’35.00”E
28 PAG-4 Balaoi Station 1 Pagudpud, I.N 18°37’28.00”N 120°51’31.00”E
29 PAG-5 Pansian Pagudpud, I.N 18°33’42.00”N 120°55’1.00”E
30 PAG-6 Pasaleng Pagudpud, I.N 18°33’32.00”N 120°57’14.00”E
31 PAG-7 Saud Station 2 Pagudpud, I.N 18°35’52.00”N 120°46’53.00”E
32 PAG-8 Balaoi Station 3 Pagudpud, I.N 18°36’6.00”N 120°52’37.00”E
33 PAG-9 Poblacion 2 Pagudpud, I.N 18°34’3.00”N 120°47’12.00”E
34 PAG-10 Caparispisan S1 Pagudpud, I.N 18°38’3.00”N 120°48’32.00”E
35 PAG-11 Caparispisan S2 Pagudpud, I.N 18°36’29.00”N 120°46’41.00”E
PROVINCE OF ILOCOS SUR
36 MAG-1 Namalpalan Beach Magsingal, I.S 17°41’29.61”N 120°22’56.34”E
37 MAG-2 Pagsaanan Beach Magsingal, I.S 17°42’19.87”N 120°24’35.01”E
38 STD-1 Sived Beah Sto. Domingo, I.S 17°38’44”N 120°21’29”E
39 STD-2 Calay-ab Beach Sto. Domingo, I.S 17°38’44.00”N 120°21’29.00”E
40 SIN-1 Dadalaquiten
Beach Sinait, Ilocos Sur 17°59’8.37”N 120°26’39.28”E
41 SIN-2 Cabangtalan
Beach Sinait, Ilocos Sur 17°53’27.00”N 120°26’43.00”E
MONITORING RESULTS OF BEACH ECO-WATCH MONITORING
Beach ecowatch monitoring was conducted on a monthly basis for the monitoring of Potential
of Hydrogen (pH), Total Coliform (TC) and Fecal Coliform (FC) which are the basic parameters to
determine the water quality of bathing beaches.
Generally, the results of monitoring in the four (4) provinces reflected that the Annual average
for Potential of Hydrogen (pH) met the water quality guideline values of 7.0-8.5 set for Class SB
water.
On the otherhand, the annual geometric mean values for Total and Fecal Coliform are within
the water quality guideline value of 1,000 MPN/100 mL sample and 100 MPN/100 mL sample
respectively except at station SFC-3 in the province of La Union; station SF-1 in the province of
Pangasinan and stations PAG-4 and PAG-8 in the province of Ilocos Norte that exceeded the
maximum allowable limit of 200 MPN/100 mL sample FC.
C.1. PROVINCE OF LA UNION
Table 128 presents the annual average for the Potential of Hydrogen (pH) monitoring data in
the Province of La Union; Table 129 presents the Annual Total Coliform (TC) Monitoring Data and
Table 130 presents the Annual Fecal Coliform (FC) Monitoring Data.
Reflected on Table 129 and 130, the annual geometric mean for Total Coliform (TC) and
Fecal Coliform (FC) are still below the DENR water quality guideline value set for Class SB waters
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 146
of 1,000 MPN/100 mL sample and 100 MPN/100 mL sample respectively with the exception of just
one (1) station in the province of La Union for Fecal Coliform (FC).
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 147
Table 128. Potential of Hydrogen (pH) Monitoring Data, CY 2019
Station
I.D NAME OF BATHING/ BEACH STATION Potential of Hydrogen (pH)
Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec
Annual
Average
PROVINCE OF LA UNION
SFC-1 San Francisco Beach – San Fernando City 7.99 8.15 7.18 7.72 8.11 7.65 7.72 8.15 8.10 8.13 8.10 8.11 7.93
SFC-2 Carlatan Beach – San Fernando City 7.64 8.21 7.30 7.88 8.01 7.67 7.98 8.14 8.21 8.28 8.21 8.14 7.97
SFC-3 Pagudpud Beach – San Fernando City 7.92 8.07 7.13 7.73 8.03 7.72 7.96 8.15 8.39 8.01 8.19 8.20 7.96
SJ-1 Urbiztondo Beach – San Juan, La Union 7.72 8.14 7.10 7.64 8.08 7.80 8.21 8.05 8.19 8.05 8.07 8.36 7.95
SJ-2 Ili Norte Beach – San Juan, L.U 7.80 8.16 7.06 7.81 8.06 7.78 8.21 7.97 8.19 8.10 8.16 8.28 7.97
BAU-1 Paringao Beach – Bauang, La Union 7.47 8.20 7.03 7.90 7.99 7.81 8.07 8.04 8.71 7.96 8.14 8.14 7.96
BAU-2 Pugo Beach – Bauang, La Union 7.89 8.20 7.19 7.84 7.87 7.90 8.09 8.01 8.27 8.15 8.77 8.05 8.02
LUN-1 Phil. Coast Guard – Luna, La Union 7.79 8.17 7.42 7.86 7.84 7.87 7.99 8.07 8.37 8.27 8.71 8.32 8.06
ARI-1 Paradiso Beach Resort – Aringay, La Union 7.63 8.00 7.62 7.76 7.88 7.83 7.93 8.06 8.39 8.01 8.52 8.07 7.98
AGO-1 Agoo-Damortis National Park – Agoo, L.U 7.83 8.18 7.22 7.91 7.77 7.91 7.88 8.11 8.11 7.93 8.66 8.20 7.98
AGO-2 San Nicolas – Agoo, La Union 7.61 8.19 7.28 7.81 7.99 7.96 7.98 8.12 8.55 7.97 8.19 8.36 8.00
AGO-3 San Manuel – Agoo, La Union 7.54 8.16 7.25 7.61 7.96 7.81 8.01 8.17 8.61 8.07 8.20 8.22 7.97
DENR Water Quality Guideline Value 7.0-8.5
set for Class " SB " Waters
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 148
Table 129. Annual Total Coliform (TC) Monitoring Data, CY 2019
Station
I.D NAME OF BATHING/ BEACH STATION Total Coliform (TC), MPN/100 mL Sample
Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec
Annual
Geomean
PROVINCE OF LA UNION
SFC-1 San Francisco Beach – San Fernando City 63 3500 7.8 9200 16000 840 <1.8 6.8 2400 23 33 330 185
SFC-2 Carlatan Beach – San Fernando City 23 330 7.8 230 330 700 33 46 460 49 490 49 108
SFC-3 Pagudpud Beach – San Fernando City 490 170 9.3 2400 2400 16000 33 1100 24000 230 490 230 585
SJ-1 Urbiztondo Beach – San Juan, La Union 4.5 130 <1.8 110 330 <1.8 17 14 330 49 49 33 29
SJ-2 Ili Norte Beach – San Juan, L.U 7.8 23 2 49 130 4 4.5 23 230 4.5 49 49 19
BAU-1 Paringao Beach – Bauang, La Union <1.8 79 14 130 490 79 230 170 230 230 160000 110 163
BAU-2 Pugo Beach – Bauang, La Union 4.5 4.5 <1.8 220 490 1300 2.0 940 230 <1.8 23 33 45
LUN-1 Phil. Coast Guard – Luna, La Union 170 23 33 23 79 22 79 2400 24000 330 130 1300 182
ARI-1 Paradiso Beach Resort – Aringay, La Union 49 23 <1.8 <1.8 23 11 23 21 1700 <1.8 13 4.5 17
AGO-1 Agoo-Damortis National Park – Agoo, L.U 790 23 <1.8 3500 16000 490 4.5 110 2400 46 49 33 144
AGO-2 San Nicolas – Agoo, La Union 2400 33 490 130 790 230 130 33 330 1700 230 33 225
AGO-3 San Manuel – Agoo, La Union 790 23 7.8 79 2400 490 130 110 330 17 23 70 105
DENR Water Quality Guideline Value 1000
set for Class " SB " Waters
Exceeded water quality guideline.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 149
Table 130. Annual Fecal Coliform (FC) Monitoring Data, CY 2019
Station
I.D NAME OF BATHING/ BEACH STATION Fecal Colifrom (FC), MPN/100 mL Sample
Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec
Annual
Geomean
PROVINCE OF LA UNION
SFC-1 San Francisco Beach – San Fernando City 63 3500 7.8 9200 16000 840 <1.8 6.8 2400 23 23 330 179
SFC-2 Carlatan Beach – San Fernando City 23 330 7.8 230 330 700 33 46 460 49 490 49 108
SFC-3 Pagudpud Beach – San Fernando City 490 170 9.3 2400 2400 16000 33 1100 24000 230 330 230 566
SJ-1 Urbiztondo Beach – San Juan, La Union 4.5 130 <1.8 110 330 <1.8 17 14 330 49 4.5 33 24
SJ-2 Ili Norte Beach – San Juan, L.U 7.8 23 2 49 130 4 4.5 23 230 4.5 14 49 17
BAU-1 Paringao Beach – Bauang, La Union <1.8 79 14 130 490 79 230 170 230 230 2400 110 115
BAU-2 Pugo Beach – Bauang, La Union 4.5 4.5 <1.8 220 490 1300 2.0 940 230 <1.8 <1.8 33 49
LUN-1 Phil. Coast Guard – Luna, La Union 170 23 33 23 79 22 79 2400 24000 330 130 1300 182
ARI-1 Paradiso Beach Resort – Aringay, La Union 49 23 <1.8 <1.8 23 11 23 21 1700 <1.8 <1.8 4.5 18
AGO-1 Agoo-Damortis National Park – Agoo, L.U 790 23 <1.8 3500 16000 490 4.5 110 2400 46 49 33 144
AGO-2 San Nicolas – Agoo, La Union 2400 33 490 130 790 230 130 33 330 1700 23 33 186
AGO-3 San Manuel – Agoo, La Union 790 23 7.8 79 2400 490 130 110 330 17 23 70 105
DENR Water Quality Guideline Value 100
100/200
Maximum
allowable Limit set for Class " SB " Waters
Exceeded water quality guideline.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 150
COMPARISON OF MONITORING DATA FROM CY 2014 TO CY 2019
As gleaned from Table 131 the six (6) years monitoring in the province of La Union for the
Total Coliform (TC) reflected that the annual geometric mean are within the water quality guideline
value of 1,000 MPN/100 mL sample.
Table 131. Comparison of Six (6) Years monitoring for Total Coliform (TC)
Station
I.D
NAME OF BATHING/
BEACH STATION
Annual Geometric Mean
(MPN/100 mL sample)
CY
2014
CY
2015
CY
2016
CY
2017
CY
2018
CY
2019
SFC-1 San Francisco Beach –
San Fernando City, L.U 69 656 92 251 190 185
SFC-2 Carlatan Beach –
San Fernando City, L.U 73 108
SFC-3 Pagudpud Beach –
San Fernando City, L.U 501 585
SJ-1 Urbiztondo Beach –
San Juan, La Union 42 525 121 70 34 29
SJ-2 Ili Norte Beach – San Juan,
L.U 20 19
BAU-1 Paringao Beach –
Bauang, La Union 108 886 65 448 39 163
BAU-2 Pugo Beach – Bauang, La
Union 37 45
LUN-1 Phil. Coast Guard –
Luna, La Union 103 195 182
ARI-1 Paradiso Beach Resort –
Aringay, La Union 7 17
AGO-1 Agoo-Damortis National
Park – Agoo, L.U 17 144
AGO-2 San Nicolas – Agoo, La
Union 350 225
AGO-3 San Manuel – Agoo, La
Union 208 105
DENR Water Quality Guideline for
Class SB waters 1,000
Revealed on Table 132 is the six (6) years recorded monitoring data for Fecal Coliform (FC).
Based on the results of yearly monitoring data recorded that station SFC-3 showed continuous
exceedance with alarming increasing trend from 265 MPN to 566 MPN from CY 2018 to CY 2019
respectively.
Table 132. Comparison of Six (6) Years monitoring for Fecal Coliform (FC)
Station
I.D
NAME OF BATHING/
BEACH STATION
Annual Geometric Mean
(MPN/100 mL sample)
CY
2014
CY
2015
CY
2016
CY
2017
CY
2018
CY
2019
SFC-1 San Francisco Beach –
San Fernando City, L.U 18 107 18 50 106 179
SFC-2 Carlatan Beach –
San Fernando City, L.U 32 108
SFC-3 Pagudpud Beach –
San Fernando City, L.U 265 566
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 151
SJ-1 Urbiztondo Beach –
San Juan, La Union 11 49 33 38 14 24
SJ-2 Ili Norte Beach – San Juan,
L.U 9 17
BAU-1 Paringao Beach –
Bauang, La Union 30 133 16 170 21 115
BAU-2 Pugo Beach – Bauang, La
Union 22 49
LUN-1 Phil. Coast Guard –
Luna, La Union 153 182
ARI-1 Paradiso Beach Resort –
Aringay, La Union 7 18
AGO-1 Agoo-Damortis National
Park – Agoo, L.U 11 144
AGO-2 San Nicolas – Agoo, La
Union 177 186
AGO-3 San Manuel – Agoo, La
Union 165 105
DENR Water Quality Guideline for
Class SB waters 100 (200 Maximum Allowable Limit)
Exceeded water quality guideline.
C.2. PROVINCE OF PANGASINAN
The recorded monitoring data in the province of Pangasinan are tabulated as Table 133 for the
Annual Potential of Hydrogen (ph); Table 134 for the Annual Total Coliform (TC) and Table 135 is
the Annual Fecal Coliform (FC) monitoring data.
The results of monitoring presented as Table 134 and Table 135 for the Total Coliform (TC)
and Fecal Coliform (FC) met the DENR water quality guideline set for Class SB waters of 1,000
MPN/100 mL sample and 100 MPN/100 mL sample respectively except at station SF-1 for Fecal
Coliform. The exceedance could be possibly attributed from the surface run-off that drains to the
coastal waters.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 152
Table 133. Potential of Hydrogen (pH) Monitoring Data, CY 2019
Station
I.D
NAME OF BATHING/ BEACH
STATION Total Coliform (TC), MPN/100 mL Sample
Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Annual
Average
PROVINCE OF PANGASINAN
SF-1 Nibaliw East Beach – San Fabian, Pang. 7.81 7.53 7.25 7.71 8.01 8.05 8.02 8.40 7.91 8.67 8.09 7.95
SF-2 Narvate Beach – San Fabian, Pang. 7.32 7.61 7.53 7.67 8.10 7.98 8.14 7.88 7.97 8.16 8.12 7.86
DC-1 Tondaligan Beach – Dagupan City 7.62 7.38 7.58 7.88 8.03 8.02 7.97 8.19 7.94 8.29 8.38 7.93
LING-1 Lingayen Beach – Lingayen, Pang. 7.83 7.50 7.63 7.92 8.01 8.22 7.27 8.11 8.43 8.24 8.34 7.95
ALA-1 Quezon Island – Alaminos, Pang. 7.18 7.61 7.33 7.97 7.99 8.08 7.12 8.65 8.18 7.22 - 7.73
ALA-2 Governor's Island – Alaminos, Pang. 7.22 7.33 7.37 7.83 7.97 8.05 7.39 8.06 8.36 8.32 - 7.79
ALA-3 Children Island – Alaminos, Pang. 7.13 7.28 7.27 7.86 7.89 8.04 7.47 8.11 8.14 7.67 - 7.69
AG-1 Agno Beach – Agno, Pang. 7.08 7.23 7.19 7.90 8.04 8.16 7.23 7.89 7.97 7.81 8.33 7.71
BOL-1 Patar Beach – Bolinao, Pang. 7.10 7.10 7.21 7.81 8.11 7.99 7.22 7.93 8.21 7.97 8.03 7.70
BOL-2 Ilog Malino (Station 1) – Bolinao, Pang. 7.01 7.18 7.33 7.86 8.16 8.17 7.20 7.63 8.10 8.06 8.11 7.71
BOL-3 Ilog Malino (Station 2) – Bolinao, Pang. 7.23 7.33 7.40 7.85 8.18 8.10 7.89 7.99 8.39 7.21 8.05 7.78
DA-1 Dasol Beach – Dasol, Pang. 7.33 7.28 7.37 7.89 8.13 8.04 7.59 8.01 8.29 8.19 8.15 7.84
DENR Water Quality Guideline Value 7.0-8.5
set for Class " SB " Waters
Exceeded water quality guideline.
-Water sampling was not conducted due to the occurrence of Typhoon Ramon during the scheduled sampling.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 153
Table 134. Annual Total Coliform (TC) Monitoring Data, CY 2019
Station
I.D
NAME OF BATHING/ BEACH
STATION Total Coliform (TC), MPN/100 mL Sample
Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Annual
Geomean
PROVINCE OF PANGASINAN
SF-1 Nibaliw East Beach – San Fabian, Pang. 24000 330 1300 490 130 23 1700 1100 2400 130 330 588
SF-2 Narvate Beach – San Fabian, Pang. 24000 33 790 33 49 49 17 460 230 <1.8 110 105
DC-1 Tondaligan Beach – Dagupan City <1.8 49 79 170 49 <1.8 6.8 1700 230 17 23 35
LING-1 Lingayen Beach – Lingayen, Pang. 2 <1.8 14 110 49 <1.8 1300 9200 1300 230 110 70
ALA-1 Quezon Island – Alaminos, Pang. <1.8 2 110 46 <1.8 <1.8 <1.8 23 <1.8 <1.8 - 5
ALA-2 Governor's Island – Alaminos, Pang. <1.8 2 <1.8 2 2 <1.8 <1.8 23 <1.8 <1.8 - 2
ALA-3 Children Island – Alaminos, Pang. <1.8 4.5 <1.8 <1.8 <1.8 <1.8 <1.8 <1.8 <1.8 <1.8 - 2
AG-1 Agno Beach – Agno, Pang. <1.8 2 <1.8 2 2400 <1.8 <1.8 <1.8 23 <1.8 4.5 5
BOL-1 Patar Beach – Bolinao, Pang. 33 230 230 49 49 <1.8 <1.8 23 23 <1.8 17 20
BOL-2 Ilog Malino (Station 1) – Bolinao, Pang. <1.8 <1.8 <1.8 110 130 49 49 23 23 <1.8 4 12
BOL-3 Ilog Malino (Station 2) – Bolinao, Pang. <1.8 <1.8 <1.8 49 49 130 <1.8 23 5400 230 330 32
DA-1 Dasol Beach – Dasol, Pang. 1.8 23 <1.8 490 23 230 790 13 170 <1.8 230 36
DENR Water Quality Guideline Value 1000
set for Class " SB " Waters
Exceeded water quality guideline.
-Water sampling was not conducted due to the occurrence of Typhoon Ramon during the scheduled sampling.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 154
Table 135. Annual Fecal Coliform (FC) Monitoring Data, CY 2019
Station
I.D NAME OF BATHING/ BEACH STATION
Fecal Coliform (FC), MPN/100 mL Sample
Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov
Annual
Geomean
PROVINCE OF PANGASINAN
SF-1 Nibaliw East Beach – San Fabian, Pang. 24000 330 1300 490 130 23 1700 1100 2400 130 330 588
SF-2 Narvate Beach – San Fabian, Pang. 24000 33 790 33 49 49 14 460 230 <1.8 110 103
DC-1 Tondaligan Beach – Dagupan City <1.8 49 79 170 49 <1.8 6.8 1700 230 17 23 35
LING-1 Lingayen Beach – Lingayen, Pang. 2 <1.8 14 110 49 <1.8 790 5400 1300 230 110 64
ALA-1 Quezon Island – Alaminos, Pang. <1.8 2 110 46 <1.8 <1.8 <1.8 23 <1.8 <1.8 - 5
ALA-2 Governor's Island – Alaminos, Pang. <1.8 2 <1.8 2 2 <1.8 <1.8 23 <1.8 <1.8 - 2
ALA-3 Children Island – Alaminos, Pang. <1.8 4.5 <1.8 <1.8 <1.8 <1.8 <1.8 <1.8 <1.8 <1.8 - 2
AG-1 Agno Beach – Agno, Pang. <1.8 2 <1.8 2 2400 <1.8 <1.8 <1.8 23 <1.8 4.5 5
BOL-1 Patar Beach – Bolinao, Pang. 33 230 230 49 49 <1.8 <1.8 23 23 <1.8 17 20
BOL-2 Ilog Malino (Station 1) – Bolinao, Pang. <1.8 <1.8 <1.8 79 130 49 49 23 23 <1.8 <1.8 11
BO-3 Ilog Malino (Station 2) – Bolinao, Pang. <1.8 <1.8 <1.8 49 49 130 <1.8 23 5400 230 330 32
DA-1 Dasol Beach – Dasol, Pang. 1.8 23 <1.8 490 23 230 790 13 170 <1.8 230 36
DENR Water Quality Guideline Value
100
100/200
Maximum
Allowable
Limit) set for Class " SB " Waters
Exceeded water quality guideline
- Water sampling was not conducted due to the occurrence of Typhoon Ramon during the scheduled sampling.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 155
COMPARISON OF MONITORING DATA FROM CY 2014 TO CY 2019
As gleaned from Table 136 the six (6) years monitoring in the province of Pangasinan for the
Total Coliform (TC) reflected that the annual geometric mean are within the water quality guideline
of 1,000 MPN/100 mL sample set for Class SB waters.
Table 136. Comparison of Six (6) Years monitoring for Total Coliform (TC)
Station
I.D
NAME OF BATHING/
BEACH STATION
Annual Geometric Mean
(MPN/100 mL sample)
CY
2014
CY
2015
CY
2016
CY
2017
CY
2018
CY
2019
SF-1 Nibaliw East Beach – San Fabian, Pang. 36 934 472 501 154 588
SF-2 Narvate Beach – San Fabian, Pang.
677 105
DC-1 Tondaligan Beach – Dagupan City 117 928 620 134 25 35
LING-1 Lingayen Beach – Lingayen, Pang. 37 305 399 417 180 70
ALA-1 Quezon Island – Alaminos, Pang. 60 394 194 113 5 5
ALA-2 Governor's Island – Alaminos, Pang. 105 339 145 59 5 2
ALA-3 Children Island – Alaminos, Pang. 70 211 306 52 8 2
AG-1 Agno Beach – Agno, Pang.
786 223 126 18 5
BOL-1 Patar Beach – Bolinao, Pang.
323 151 54 27 20
BOL-2 Ilog Malino (Station 1) – Bolinao, Pang.
573 200 100 36 12
BOL-3 Ilog Malino (Station 2) – Bolinao, Pang.
53 32
DA-1 Dasol Beach – Dasol, Pang.
848 162 140 48 36
DENR Water Quality Guideline for Class SB waters 1,000
As gleaned from Table 137 the six (6) years monitoring data for the Fecal Coliform (FC)
reflected that most of the annual geometric mean met the water quality guideline of 100 MPN/100 mL
sample. Exceedances were noted in one (1) station for CY 2018 and CY 2019.
Table 137. Comparison of Six (6) Years monitoring for Fecal Coliform (FC)
Station
I.D
NAME OF BATHING/
BEACH STATION
Annual Geometric Mean
(MPN/100 mL sample)
CY
2014
CY
2015
CY
2016
CY
2017
CY
2018
CY
2019
SF-1 Nibaliw East Beach – San Fabian, Pang. 7 55 113 88 103 588
SF-2 Narvate Beach – San Fabian, Pang.
610 103
DC-1 Tondaligan Beach – Dagupan City 34 65 66 38 20 35
LING-1 Lingayen Beach – Lingayen, Pang. 13 55 112 80 117 64
ALA-1 Quezon Island – Alaminos, Pang. 11 62 47 35 5 5
ALA-2 Governor's Island – Alaminos, Pang. 30 45 34 41 4 2
ALA-3 Children Island – Alaminos, Pang. 36 153 52 26 6 2
AG-1 Agno Beach – Agno, Pang.
72 98 31 15 5
BOL-1 Patar Beach – Bolinao, Pang.
45 53 47 22 20
BOL-2 Ilog Malino (Station 1) – Bolinao, Pang.
91 101 59 31 11
BOL-3 Ilog Malino (Station 2) – Bolinao, Pang.
35 32
DA-1 Dasol Beach – Dasol, Pang.
97 83 52 31 36
DENR Water Quality Guideline for Class SB waters 100/200 Maximum Allowable Limit
Exceeded water quality guideline.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 156
C.3. PROVINCE OF ILOCOS NORTE
For this year, this region sustained eleven (11) established beach monitoring stations in the
province of Ilocos Norte. The results of water quality monitoring are presented as Table 138 for the
Potential of Hydrogen (pH); Table 139 and Table 140 for the Annual Total Coliform (TC) and Fecal
Coliform (FC) monitoring data.
As gleaned on Table 139 the annual geometric mean values for Total Coliform (TC) ranges
from 8 MPN to 487 MPN that met the water quality guideline value set for Class SB waters of 1,000
MPN/100 mL sample.
The summarized Fecal Coliform (FC) monitoring data in Table 140 reflected that the results
of monitoring for the annual geometric mean values ranges from 7 MPN to 351 MPN wherein nine
(9) out of twelve (12) monitoring stations met the water quality guideline value of 100 MPN/100 mL
sample set for Class SB waters. Stations PAG-4 and PAG-8 exceeded the maximum allowable limit
of 200 MPN/100 mL sample.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 157
Table 138. Potential of Hydrogen (pH) Monitoring Data, CY 2019
Station
I.D
NAME OF BATHING/ BEACH
STATION
Potential of Hydrogen (pH)
Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec Annual
Average
PROVINCE OF ILOCOS NORTE
PAG-1 Burayoc Station – Pagudpud, I.N - 7.33 7.47 7.83 7.91 7.99 7.30 7.62 7.72 7.75 7.97 8.22 7.74
PAG-2 Saud Station 1 – Pagudpud, I.N - 7.21 7.39 7.86 7.97 7.83 7.18 7.79 7.90 7.86 8.10 8.46 7.78
PAG-3 Balaoi Station 2 – Pagudpud, I.N - 7.18 7.30 7.98 8.01 7.96 7.32 7.53 8.11 7.74 7.92 8.11 7.74
PAG-4 Balaoi Station 1 – Pagudpud, I.N - 7.21 7.29 7.61 8.04 7.66 7.22 7.75 7.90 7.53 7.68 8.23 7.65
PAG-5 Pansian – Pagudpud, I.N - 7.43 7.40 7.72 8.05 8.01 7.21 7.51 7.47 7.56 7.97 7.97 7.66
PAG-6 Pasaleng – Pagudpud, I.N - 7.79 7.59 7.83 8.10 7.87 7.96 7.79 8.09 8.03 8.15 8.07 7.93
PAG-7 Saud Station 2 – Pagudpud, I.N - 7.23 7.39 7.84 8.13 8.09 7.78 7.67 8.24 7.69 8.07 8.15 7.84
PAG-8 Balaoi Station 3 – Pagudpud, I.N - 7.40 7.37 7.91 7.99 7.89 7.37 7.52 8.02 8.11 8.01 8.14 7.79
PAG-9 Poblacion 2 – Pagudpud, I.N - 7.32 7.38 7.97 7.96 7.91 7.44 7.65 8.17 7.67 7.82 8.11 7.76
PAG-10 Caparispisan Station 1 – Pagudpud, I.N - 7.48 7.27 7.98 7.98 7.98 7.44 7.62 8.29 7.91 7.67 8.19 7.80
PAG-11 Caparispisan Station 2 – Pagudpud, I.N - 7.88 7.29 7.68 7.81 8.10 7.56 7.83 8.25 7.66 7.82 8.22 7.83
DENR Water Quality Guideline Value 7.0-8.5
set for Class " SB " Waters
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 158
Table 139. Annual Total Coliform (TC) Monitoring Data, CY 2019
Station
I.D
NAME OF BATHING/ BEACH
STATION
Total Coliform (TC), MPN/100 mL Sample
Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec Annual
Geomean
PROVINCE OF ILOCOS NORTE
PAG-1 Burayoc Station – Pagudpud, I.N - 33 7.8 39 2400 <1.8 790 230 23 130 94 4.5 53
PAG-2 Saud Station 1 – Pagudpud, I.N - 330 230 2 3500 33 490 230 33 4.5 170 5400 135
PAG-3 Balaoi Station 2 – Pagudpud, I.N - 140 <1.8 4.5 700 23 70 17 <1.8 23 9.3 2 16
PAG-4 Balaoi Station 1 – Pagudpud, I.N - 23 230 330 16000 23 24000 230 1300 130 1300 470 487
PAG-5 Pansian – Pagudpud, I.N - 79 <1.8 <1.8 70 330 330 7.8 23 <1.8 490 490 36
PAG-6 Pasaleng – Pagudpud, I.N - 79 <1.8 <1.8 230 <1.8 4.5 4 2.0 2 <1.8 490 8
PAG-7 Saud Station 2 – Pagudpud, I.N - 230 <1.8 <1.8 3500 <1.8 330 79 110 7.8 2 230 33
PAG-8 Balaoi Station 3 – Pagudpud, I.N - 330 49 <1.8 9200 2400 790 230 79 230 490 790 280
PAG-9 Poblacion 2 – Pagudpud, I.N - 490 <1.8 11 1100 <1.8 230 230 33 <1.8 1100 13 43
PAG-10 Caparispisan Station 1 – Pagudpud, I.N - 1300 2 2 330 4.5 49 230 6.8 4.5 <1.8 79 21
PAG-11 Caparispisan Station 2 – Pagudpud, I.N - 1100 <1.8 33 3500 <1.8 11 230 <1.8 230 2 2 24
DENR Water Quality Guideline Value 1000
set for Class " SB " Waters
Exceeded Water Quality Guideline Value
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 159
Table 140. Annual Fecal Coliform (FC) Monitoring Data, CY 2019
Station
I.D
NAME OF BATHING/ BEACH
STATION
Fecal Coliform (FC), MPN/100 mL Sample
Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec Annual
Geomean
PROVINCE OF ILOCOS NORTE
PAG-1 Burayoc Station – Pagudpud, I.N - 33 <1.8 39 2400 <1.8 790 230 23 130 94 4.5 47
PAG-2 Saud Station 1 – Pagudpud, I.N - 330 <1.8 2 3500 33 490 230 33 4.5 170 5400 87
PAG-3 Balaoi Station 2 – Pagudpud, I.N - 140 <1.8 2 700 23 70 17 <1.8 23 9.3 2 15
PAG-4 Balaoi Station 1 – Pagudpud, I.N - <1.8 79 330 16000 23 24000 230 1300 130 1300 470 351
PAG-5 Pansian – Pagudpud, I.N - 79 <1.8 <1.8 70 330 330 7.8 23 <1.8 490 490 36
PAG-6 Pasaleng – Pagudpud, I.N - 79 <1.8 <1.8 230 <1.8 4.5 2.0 2.0 2 <1.8 490 7
PAG-7 Saud Station 2 – Pagudpud, I.N - 230 <1.8 <1.8 3500 <1.8 330 79 110 7.8 2 230 33
PAG-8 Balaoi Station 3 – Pagudpud, I.N - 330 <1.8 <1.8 9200 2400 790 230 79 230 490 790 207
PAG-9 Poblacion 2 – Pagudpud, I.N - 490 <1.8 11 1100 <1.8 230 230 33 <1.8 1100 13 43
PAG-10 Caparispisan Station 1 – Pagudpud, I.N - 1300 <1.8 2 330 4.5 49 230 6.8 4.5 <1.8 79 21
PAG-11 Caparispisan Station 2 – Pagudpud, I.N - 1100 <1.8 33 3500 <1.8 11 230 <1.8 230 <1.8 2 24
DENR Water Quality Guideline Value
100
100/200
Maximum
Allowable
Limit set for Class " SB " Waters
Exceeded Water Quality Guideline Value
(-) Water sampling was not conducted due to continuous heavy rains.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 160
COMPARISON OF MONITORING DATA FROM CY 2014 TO CY 2019
As gleaned from Table 141 and 142 the six (6) years monitoring in the province of Ilocos
Norte for the Total Coliform (TC) and Fecal Coliform (FC) reflected that the annual geometric mean
values are within the water quality guideline of 1,000 MPN/100 mL TC and 100 MPN/100 mL FC set
for Class SB water. Exceedance was noted for Fecal Coliform (FC) at stations PAG-4 and PAG-8 for
CY 2019 that exceeded the 200 MPN maximum allowable limit.
Table 141. Comparison of Six (6) Years monitoring for Total Coliform (TC)
Station
I.D
NAME OF BATHING/
BEACH STATION
Annual Geometric Mean
(MPN/100 mL sample)
CY
2014
CY
2015
CY
2016
CY
2017
CY
2018
CY
2019
PAG-1 Burayoc Station - Pagudpud, IN 59 638 275 115 15 53
PAG-2 Saud Station 1 - Pagudpud, IN 111 589 352 232 72 135
PAG-3 Balaoi Station 2 - Pagudpud, IN 130 308 225 139 9 16
PAG-4 Balaoi Station 1 - Pagudpud, IN 130 724 205 336 132 487
PAG-5 Pansian - Pagudpud, IN
565 269 39 27 36
PAG-6 Pasaleng - Pagudpud, IN
183 215 60 4 8
PAG-7 Saud Station 2 - Pagudpud, IN
539 167 134 30 33
PAG-8 Balaoi Station 3 - Pagudpud, IN
252 256 57 280
PAG-9 Poblacion 2 - Pagudpud, IN
242 149 23 43
PAG-10 Caparispisan Station 1 - Pagudpud, IN
201 97 16 21
PAG-11 Caparispisan Station 2 - Pagudpud, IN
272 69 8 24
DENR Water Quality Guideline for Class SB waters 1,000
Table 142. Comparison of Six (6) Years monitoring for Fecal Coliform (FC)
Station
I.D NAME OF BATHING/ BEACH STATION
Annual Geometric Mean
(MPN/100 mL sample)
CY
2014
CY
2015
CY
2016
CY
2017
CY
2018
CY
2019
PAG-1 Burayoc Station - Pagudpud, IN 28 81 73 42 9 47
PAG-2 Saud Station 1 - Pagudpud, IN 73 95 97 69 36 87
PAG-3 Balaoi Station 2 - Pagudpud, IN 65 49 73 48 8 15
PAG-4 Balaoi Station 1 - Pagudpud, IN 50 89 85 85 70 351
PAG-5 Pansian - Pagudpud, IN
76 66 32 20 36
PAG-6 Pasaleng - Pagudpud, IN
29 106 40 3 7
PAG-7 Saud Station 2 - Pagudpud, IN
50 64 40 16 33
PAG-8 Balaoi Station 3 - Pagudpud, IN
80 89 28 207
PAG-9 Poblacion 2 - Pagudpud, IN
86 41 13 43
PAG-10 Caparispisan Station 1 - Pagudpud, IN
70 44 10 21
PAG-11 Caparispisan Station 2 - Pagudpud, IN
77 35 4 24
Water Quality Guideline for Class SB waters 100 (200 Maximum Allowable Limit)
Exceeded water quality guideline.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 161
C.4 PROVINCE OF ILOCOS SUR
This region sustained six (6) established monitoring stations in the province of Ilocos Sur.
Two (2) stations were established in each municipality of Magsingal, Sto. Domingo and Sinait.
Table 143 presents the Annual Total Coliform (TC) monitoring data in the Province of Ilocos
Sur; Table 144 presents the Annual Total Coliform (TC) monitoring data and Table 145 presents the
Annual Fecal Coliform (FC) monitoring data.
As gleaned on Table 142 is the Total Coliform monitoring data showed that the annual
geometric mean values ranges from 11 MPN to 46 MPN are within the water quality guideline value
of 1,000 MPN/100 mL sample.
The results of monitoring presented as Table 143 for the Fecal Coliform (FC) monitoring met
the water quality guideline set for Class SB waters of 100 MPN/100 mL sample.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 162
Table 143. Potential of Hydrogen (pH) Monitoring Data, CY 2019
Station I.D NAME OF BATHING/ BEACH
STATION
Potential of Hydrogen (pH)
Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec Annual
Average
PROVINCE OF ILOCOS SUR
MAG-1 Namalpalan Beach – Magsingal, I.S - 7.33 7.28 7.72 7.81 7.88 7.97 8.11 8.51 7.97 7.83 7.91 7.85
MAG-2 Pagsaanan Beach – Magsingal, I.S - 7.41 7.16 7.77 8.01 8.09 8.10 8.03 8.21 7.83 7.42 7.44 7.77
STD-1 Sived Beach – Sto. Domingo, I.S - 7.38 7.38 7.67 8.03 8.02 7.97 8.21 8.14 7.77 7.66 7.61 7.80
STD-2 Calay-ab Beach – Sto. Domingo, I.S - 7.48 7.37 7.81 7.99 7.76 7.95 8.15 8.90 7.81 7.81 7.77 7.89
SIN-1 Dadalaquiten Beach – Sinait, I.S - 7.44 7.49 7.73 7.80 7.92 8.00 8.13 8.20 7.91 7.22 7.81 7.79
SIN-2 Cabangtalan Beach – Sinait, I.S - 7.78 7.88 7.84 7.41 8.03 8.23 8.14 8.19 7.58 7.97 7.90 7.90
DENR Water Quality Guideline Value
7.0-8.5 set for Class " SB " Waters
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 163
Table 144. Annual Total Coliform (TC) Monitoring Data, CY 2019
Station I.D NAME OF BATHING/ BEACH
STATION
Total Coliform (TC), MPN/100 mL Sample
Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec Annual
Geomean
PROVINCE OF ILOCOS SUR
MAG-1 Namalpalan Beach – Magsingal, I.S - 4.5 <1.8 2 23 2 <1.8 <1.8 790 2400 23 <1.8 11
MAG-2 Pagsaanan Beach – Magsingal, I.S - 4.5 <1.8 <1.8 330 2 4.5 27 24000 330 230 <1.8 26
STD-1 Sived Beach – Sto. Domingo, I.S - 2 33 7.8 23 <1.8 <1.8 <1.8 230 3500 230 2 17
STD-2 Calay-ab Beach – Sto. Domingo, I.S - 4.5 11 4.5 49 <1.8 <1.8 4.5 230 230 230 22 17
SIN-1 Dadalaquiten Beach – Sinait, I.S - 7.8 4.5 9.3 230 17 <1.8 49 490 24000 79 17 46
SIN-2 Cabangtalan Beach – Sinait, I.S - 4.5 49 <1.8 490 790 2.0 4.5 330 460 230 2 35
DENR Water Quality Guideline Value 1000
set for Class SB Waters
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 164
Table 145. Annual Fecal Coliform (FC) Monitoring Data, CY 2019
Station
I.D
NAME OF BATHING/ BEACH
STATION
Fecal Coliform (FC), MPN/100 mL Sample
Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec Annual
Geomean
PROVINCE OF ILOCOS SUR
MAG-1 Namalpalan Beach – Magsingal, I.S - 4.5 <1.8 2 23 2 <1.8 <1.8 790 2400 23 <1.8 11
MAG-2 Pagsaanan Beach – Magsingal, I.S - 4.5 <1.8 <1.8 330 2 4.5 27 24000 330 230 <1.8 26
STD-1 Sived Beach – Sto. Domingo, I.S - 2 33 7.8 23 <1.8 <1.8 <1.8 230 3500 230 <1.8 16
STD-2 Calay-ab Beach – Sto. Domingo, I.S - 4.5 11 4.5 49 <1.8 <1.8 4.5 230 230 230 22 17
SIN-1 Dadalaquiten Beach – Sinait, I.S - 7.8 4.5 9.3 230 17 <1.8 49 490 24000 79 17 46
SIN-2 Cabangtalan Beach – Sinait, I.S - 4.5 49 <1.8 490 790 2.0 4.5 330 460 230 2 35
DENR Water Quality Guideline Value 100
100/200
Maximum
Allowable
Limit set for Class " SB " Waters
Exceeded water quality guideline.
(-) Water sampling was not conducted due to continuous heavy rains.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 165
COMPARISON OF MONITORING DATA FROM CY 2016 TO CY 2019
As gleaned from Table 146 and 147 the four (4) years monitoring in the province of Ilocos
Sur for the Total Coliform (TC) and Fecal Coliform (FC) reflected that the annual geometric mean are
within the water quality guideline value of 1,000 MPN/100 mL sample TC and 100 MPN/100 mL
sample FC set for Class SB water. However, exceedance was noted for Fecal Coliform (FC) at station
SIN-1 for CY 2018 that exceeded the 200 MPN maximum allowable limit. However, improvement in
the water quality was noted for CY 2019.
Table 146. Comparison of Four (4) Years monitoring for Total Coliform (TC)
Station
I.D
NAME OF BATHING/ BEACH
STATION
Annual Geometric Mean
(MPN/100 mL sample)
CY
2016
CY
2017
CY
2018 CY 2019
PROVINCE OF ILOCOS SUR
MAG-1 Namalpalan Beach – Magsingal, I.S 373 152 33 11
MAG-2 Pagsaanan Beach – Magsingal, I.S 20 26
STD-1 Sived Beach – Sto. Domingo, I.S 183 81 17
STD-2 Calay-ab Beach – Sto. Domingo, I.S 97 17
SIN-1 Dadalaquiten Beach – Sinait, I.S 158 623 46
SIN-2 Cabangtalan Beach – Sinait, I.S 18 35
DENR Water Quality Guideline Value
set for Class " SB " Waters 1,000
Table 147. Comparison of Four (4) Years monitoring for Fecal Coliform (FC)
Station
I.D
NAME OF BATHING/ BEACH
STATION
Annual Geometric Mean
(MPN/100 mL sample)
CY
2016
CY
2017
CY
2018
CY
2019
PROVINCE OF ILOCOS SUR
MAG-1 Namalpalan Beach – Magsingal, I.S 97 106 21 11
MAG-2 Pagsaanan Beach – Magsingal, I.S 14 26
STD-1 Sived Beach – Sto. Domingo, I.S 87 34 16
STD-2 Calay-ab Beach – Sto. Domingo, I.S 32 17
SIN-1 Dadalaquiten Beach – Sinait, I.S 102 203 46
SIN-2 Cabangtalan Beach – Sinait, I.S 12 35
DENR Water Quality Guideline Value
set for Class " SB " Waters 100/200 Maximum Allowable Limit
Exceeded water quality guideline.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 166
D. PRIORITY RIVER- GOVANTES-MESTIZO RIVER SYSTEM
The Govantes-Mestizo River is a river system located in the Municipality of Santa, Municipality of
Bantay and the City of Vigan in the Province of Ilocos Sur. With the towns and city being located
very close to one another, the entire stretch of the Govantes-Mestizo River has similar hydrological,
hydrogeological, meteorological and geographical conditions that affect the physiochemical,
biological and bacteriological reactions and diffusions of pollutants, specifically to the end of the river
that the main channel of the river eventually drains to the West Philippine Sea.
The river shares defined common and similar water quality-related development programs, prospects,
or problems and have the prospect and potential of economic and social development. Land-use in the
Govantes-Mestizo River can be classified generally into agricultural, residential and commercial
areas.
The headwater of the Govantes-Mestizo River originates from the Abra River in the Municipality of
Santa, Ilocos Sur. The established upstream monitoring station of the Govantes River is in Barangay 3
and the downstream monitoring station is in Barangay Fatima in Vigan City while the upstream
monitoring station of the Mestizo River is in Barangay Capampangan while the established
downstream monitoring station is in Tamag also in Vigan City.
The Govantes and Mestizo River are part of the Adopt-an-estero/waterbody Program of EMB I; the
Govantes River was adopted by Jollibee Bantay while the Mestizo River was adopted by Jollibee
Vigan, the three-year Memorandum of Agreement (MOA) for both the Govantes and Mestizo River
were signed on May 24, 2016. Due to growing concern on the further deterioration of the Govantes-
Mestizo River, the said river system was listed as a priority river to be constantly monitored by EMB I
and organize concerned entities to adequately address the issues on sanitary and water quality issues.
The two (2) rivers are downstream tributary of Abra river.
EMB 1 coordinated with LGU Vigan City to conduct water quality monitoring and establish
additional monitoring stations of the Govantes-Mestizo River. Measurement of baseline on-site data,
obtaining the GPS coordinates of the monitoring stations and collection of water samples to be
analyzed at the EMB Regional laboratory for physiochemical parameters (BOD, Chloride, Color, DO,
Nitrate, pH, Phosphate, Temperature and TSS) and bacteriological parameters (FC). Likewise, the
conduct of the water quality monitoring shall be continuous monthly to closely observe the status of
the water quality of Govantes-Mestizo River and to prevent its further deterioration.
In CY 2018, there were nine (9) monitoring stations established but due to the increase in the
frequency of sampling from quarterly to monthly and increase in the number of parameters monitored
with the inclusion of other primary parameters such as nitrate, phosphate, ph, color, chloride and
temperature, the monitoring stations were reduced to seven (7) for CY 2019. During the Second
Govantes-Mestizo River Stakeholders’ Forum held on June 20-21, 2019, it was agreed that a
monitoring station will be established at San Mariano, Bantay in the Province of Ilocos Sur. Water
Quality Monitoring of the San Mariano monitoring station was started on July, CY 2019 but due to
inaccessibility of the monitoring station, no data were recorded in the succeeding months except in
November and December of CY 2019. Therefore, a total of eight (8) monitoring stations were
established along Govantes-Mestizo River System.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 167
MONITORING RESULTS OF GOVANTES-MESTIZO RIVER
The results of the water quality monitoring of the nine (9) monitoring stations in the Govantes-
Mestizo River System for 2019 are to wit:
D.1. Potential of Hydrogen (pH)
Table 148 shows the pH Monitoring Data for CY 2019. All monitoring stations met the DENR Water
Quality Guideline of 6.5-9.0.
Table 148. pH Monitoring Data, CY 2019
Station
ID
NAME OF
STATION
PARAMETER
Potential of Hydrogen (pH)
Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec MIN MAX AVE
SAN-1 Quirino
Bridge 8.8 8.8 8.7 8.6 7.9 7.9 8 * 6.9 1 --- 1.0 8.8 7.4
VIG-1 Brgy. 4 7.6 8.8 8.1 - - - 7.2 7.2 7.1 6.9 6.9 6.9 8.8 7.5
VIG-2
Brgy. 6/
Hanging
Bridge
* 8.3 8.3 8.3 - - 7.7 -- - 7.08 7.1 7.1 8.3 7.8
VIG -3
Brgy.
Pagpartian/
Cabangtalan
8 8.3 8.0 7.4 7.4 7.4 7.2 7 7.1 --- --- 7.0 8.3 7.5
VIG-4 Brgy.
Capangpangan 7.5 7.6 7.5 7.5 7.3 7.2 7.3 6.9 7 --- --- 6.9 7.6 7.3
VIG-5 Brgy.
Beddeng 8.2 9 9 8 7.3 7.3 7.1 * 7.2 7.1 9.0 7.9
VIG-6 Brgy. Tamag 8.1 8.7 8.7 8.0 7.2 7.4 7 * 7.2 7.0 8.7 7.8
BAN-1 San Mariano * * * * * -- -- -- - 7.8 7.8 7.8 7.8 7.8
DENR Water Quality
Guideline for Class
“C” Water
Classification
6.5 – 9.0
(*) No On-Site Data
(-) Stagnancy of the river
(--) Inaccessibility of monitoring station
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 168
Table 149 shows the Comparison of two (2) years annual average for Potential of Hydrogen (pH)
monitoring, it is reflected that the yearly averages from CY 2018 to CY 2019 are within the DENR
guideline for Class C water classification of 6.5 to 9.0.
Table 149. Comparison of two (2) year annual average for Potential of Hydrogen (pH)
Stations Locations Potential of Hydrogen (pH)
CY 2018 CY 2019
SAN-1 Quirino Bridge 7.4 7.4
VIG-1 Brgy. 4 7.4 7.5
VIG-2 Brgy. 6/ Hanging Bridge 7.8 7.8
VIG -3 Brgy. Pagpartian/
Cabangtalan 7.9 7.5
VIG-4 Brgy. Capangpangan 7.8 7.3
VIG-5 Brgy. Beddeng 7.6 7.9
VIG-6 Brgy. Tamag 7.4 7.8
BAN-1 San Mariano - 7.8
DENR Water Quality Guideline for
Class “C” Water Classification 6.5-9.0
D.2. Dissolved Oxygen (DO)
Table 150 presents the Dissolved Oxygen (DO) Monitoring Data for CY 2019. As reflected from the
table, most stations did not meet the DENR water quality guideline of ≥5 mg/L for Class C water
classification in the months of May to October. Only SAN-1 station sustained its water quality
throughout the year. The annual averages of the DO showed that all of the monitoring stations except
VIG-2 station met the DENR water quality guideline of ≥5.0 mg/L to sustain aquatic life.
Table 150. Dissolved Oxygen Monitoring Data, CY 2019
(*) No Data
(-) Stagnancy of the river
(--) Inaccessibility of monitoring station
STATIO
N
I.D
NAME OF STATION
Dissolved Oxygen (DO) (mg/L)
Feb Ma
r Apr
Ma
y
Ju
n Jul Aug Sep Oct Nov Dec Min
Ma
x Ave
SAN-1 Quirino Bridge 8.8 8.8 9.4 7.4 6.8 8.2 7.8 7.9 8.2 --- --- 6.8 9.4 8.1
VIG-1 Brgy. 4 6.5 15.9 13.4 - - - 2.4 4.7 0.8 0.37 0.4 0.4 15.9 5.6
VIG-2 Brgy. 6/ Hanging Bridge * 6 7.2 5.4 - - 5.7 -- - 1.72 1.7 1.7 7.2 4.6
VIG -3 Brgy. Pagpartian/
Cabangtalan 12.8 12 9.5 0.8 2.3 4.7 3.4 4.9 3.7 --- --- 0.8 12.8 6.0
VIG-4 Brgy. Capangpangan 7 6.8 4.5 3.7 3.4 2..9 4.2 6 5.4 --- --- 3.4 7.0 5.1
VIG-5 Brgy. Beddeng 12.2 15 18.4 7.4 3.3 7.1 4.1 5.3 3.9 --- --- 3.3 18.4 8.5
VIG-6 Brgy. Tamag 11.5 13.2 13.6 6.6 3.2 4.8 3.4 4.1 3.9 --- --- 3.2 13.6 7.1
BAN-1 San Mariano * * * * * -- -- -- -- 6.28 6.3 6.3 6.3 6.3
DENR Water Quality Guideline Value
for
Class " C " Waters
≥5.0
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 169
Table 151 shows the comparison of two (2) years annual averages for Dissolved Oxygen (DO)
monitoring in all eight (8) monitoring stations of the Govantes-Mestizo River System. The table
shows an improvement in the water quality from CY 2018 to CY 2019 except at station VIG-2.
Almost all of the stations meet the DENR minimum Water Quality Guideline of 5.0 mg/L.
Table 151. Comparison of two (2) year annual average for Dissolved Oxygen (DO)
Stations Locations Dissolved Oxygen (DO)
CY 2018 CY 2019
SAN-1 Quirino Bridge 6.3 8.1
VIG-1 Brgy. 4 4.6 5.6
VIG-2 Brgy. 6/ Hanging Bridge 5.7 4.6
VIG -3 Brgy. Pagpartian/
Cabangtalan 7.3 6.0
VIG-4 Brgy. Capangpangan 8.4 5.1
VIG-5 Brgy. Beddeng 8.5 8.5
VIG-6 Brgy. Tamag 4.1 7.1
BAN-1 San Mariano - 6.3
DENR Water Quality Guideline for Class
“C” Water Classification ≥5 mg/L
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 170
D.3. Biochemical Oxygen Demand (BOD)
Table 152 shows the monitoring data of Biochemical Oxygen Demand (BOD for CY 2019. Most of
the monitoring stations did not meet the DENR water quality guideline (BOD ≤7 mg/L) for Class C
water classification in several months. The annual averages of the BOD showed that only SAN-1 and
VIG-4 met the DENR water quality guideline of .0 ≤7 mg/L.
Table 152. Biochemical Oxygen Demand (BOD) Monitoring Data, CY 2019
(*) No Data
(-) Stagnancy of the river
(--) Inaccessibility of monitoring station
Table 153 shows the comparison of two (2) years annual average for Biochemical Oxygen Demand
(BOD) Monitoring Data. The annual averages for Biochemical Oxygen Demand from CY 2018 to CY
2019 revealed that 71% (5 out of 7) monitoring stations did not meet the Water Quality Guideline of
≤7.0mg/L for Class C water classification.
Table 153. Comparison of two (2) year annual average for Biochemical Oxygen Demand
Stations Locations BOD
CY 2018 CY 2019
SAN-1 Quirino Bridge 4 3
VIG-1 Brgy. 4 12 14
VIG-2 Brgy. 6/ Hanging Bridge 6 10
VIG -3 Brgy. Pagpartian/
Cabangtalan 5 27
VIG-4 Brgy. Capangpangan 8 7
VIG-5 Brgy. Beddeng 7 9
VIG-6 Brgy. Tamag 20 9
BAN-1 San Mariano - N/A
DENR Water Quality Guideline for Class “C” Water
Classification ≤7 mg/L
STATIO
N
I.D
NAME OF STATION
Biochemical Oxygen Demand (BOD) (mg/L)
Feb Ma
r Apr
Ma
y
Ju
n Jul Aug Sep Oct Nov Dec Min
Ma
x Ave
SAN-1 Quirino Bridge 3 2 2 7 <1 <1 4 3 <1 --- --- 1 7 3
VIG-1 Brgy. 4 12 13 * - - - 16 6 23 * * 6 23 14
VIG-2 Brgy. 6/ Hanging Bridge * 6 7 21 - - 6 -- - * * 6 21 10
VIG -3 Brgy. Pagpartian/
Cabangtalan 5 9 13 177 10 10 11 5 4 --- --- 4 177 27
VIG-4 Brgy. Capangpangan 2 5 9 22 3 13 2 4 2 --- --- 2 22 7
VIG-5 Brgy. Beddeng 8 11 - 19 4 11 7 4 6 --- --- 4 19 9
VIG-6 Brgy. Tamag 5 7 12 23 13 8 3 3 8 --- --- 3 23 9
BAN-1 San Mariano * * * * * -- -- -- -- * * N/A N/A N/A
DENR Water Quality Guideline Value
for
Class " C " Waters
≤7
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 171
D.4. Color
Based on the tabulated monitoring data for CY 2019 in Table 154, all stations met the maximum
Color requirement of 75 TCU. The Color values range from 5 TCU to 20 TCU.
Table 154. Color Monitoring Data, CY 2019
(*) No Data
(-) Stagnancy of the river
(--) Inaccessibility of monitoring station
D.5. Temperature
Tables 155 shows the Temperature Monitoring Data for Class C Water Type. Several monitoring
stations did not meet the DENR Water Quality Guideline (25-31°C) for temperature.
Table 155. Temperature Monitoring Data, CY 2019
(*) No Data
(-) Stagnancy of the river
(--) Inaccessibility of monitoring station
STATION
I.D NAME OF STATION
Color (TCU)
Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Min Max Ave
SAN-1 Quirino Bridge 5 5 5 5 20 10 10 <5 10 --- --- 5 20 8
VIG-1 Brgy. 4 10 10 10 - - - 15 5 15 10 10 5 15 11
VIG-2 Brgy. 6/ Hanging Bridge * 20 20 20 - - 20 -- - 20 20 20 20 20
VIG -3 Brgy. Pagpartian/
Cabangtalan 5 10 10 15 25 15 15 10 10 --- --- 5 25 13
VIG-4 Brgy. Capangpangan 5 5 5 5 20 15 15 5 10 --- --- 5 20 9
VIG-5 Brgy. Beddeng 10 10 15 15 20 15 10 5 10 --- --- 5 20 12
VIG-6 Brgy. Tamag 5 15 15 10 15 15 10 5 10 --- --- 5 15 11
BAN-1 San Mariano * * * * * -- -- -- -- <5.0 <5 5 5 5
DENR Water Quality Guideline Value
For Class " C " Waters 75
STATION
I.D NAME OF STATION
Temperature (°C)
Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Min Max Ave
SAN-1 Quirino Bridge --- 31.25 33.58 - - 31.15 26.5 29.91 30.1 - - 26.50 33.58 30.42
VIG-1 Brgy. 4 --- 30.51 30.97 - - - 24.93 30.79 30.21 --- --- 24.93 30.97 29.48
VIG-2 Brgy. 6/ Hanging Bridge --- 29.17 34.34 33.52 - - 29.86 -- - --- --- 29.17 34.34 31.72
VIG -3 Brgy. Pagpartian/
Cabangtalan --- 31.15 34.58 32.75 --- 32.15 37.21 30.12 29.81 - - 29.81 37.21 32.54
VIG-4 Brgy. Capangpangan --- 30.18 29.38 30.63 --- 30.36 28.54 29.83 29.01 - - 28.54 30.63 29.70
VIG-5 Brgy. Beddeng --- 30.76 31.97 33.48 --- 33.84 28.53 31.51 30.5 - - 28.53 33.84 31.51
VIG-6 Brgy. Tamag --- 31.21 34.77 35.08 --- 31.18 28.57 30.25 30.15 - - 28.57 35.08 31.60
San Mariano * * * * * -- -- -- -- --- --- N/A N/A N/A
DENR Water Quality Guideline Value
for Class " C " Waters 25-31°C
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 172
D.6. Nitrate
Table 156 shows the monitoring data for the monitoring stations of the Govantes-Mestizo River
System. As gleaned from the table, the Nitrate results revealed that all monitoring station met the
DENR Water Quality Guideline of ≤7 mg/L for Class C water classification.
Table 156. Nitrate Monitoring Data, CY 2019
(*) No Data
(-) Stagnancy of the river
(--) Inaccessibility of monitoring station
STATIO
N
I.D
NAME OF STATION
Nitrate (mg/L)
Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Min Ma
x Ave
SAN-1 Quirino Bridge <0.05 0.06 <0.05 <0.05 0.5 0.2
1 0.1 0.19 0.17 --- --- 0.05 0.50 0.15
VIG-1 Brgy. 4 0.76 0.73 0.3 - - - 0.2 1.58 <0.0
5 0.5 0.5 0.05 1.58 0.58
VIG-2 Brgy. 6/ Hanging
Bridge * <0.05 <0.05 <0.05 - - <0.05 -- - 0.13 0.13 0.05 0.13 0.08
VIG -3 Brgy. Pagpartian/
Cabangtalan 0.78 0.47 0.3 0.1 0.5
0.4
1 0.59 0.93 0.93 --- --- 0.10 0.93 0.56
VIG-4 Brgy. Capangpangan 1.1 1.2 1.1 0.9 0.7 0.4
4 0.66 1.02 1.15 --- --- 0.44 1.20 0.92
VIG-5 Brgy. Beddeng 0.53 0.29 0.2 0.1 0.7 0.5 0.69 1.02 1.15 --- --- 0.10 1.15 0.58
VIG-6 Brgy. Tamag 0.58 0.32 0.2 0.1 0.7 0.2
3 0.64 0.98 1.2 --- --- 0.10 1.20 0.55
BAN-1 San Mariano * * * * * -- -- -- -- 0.06 0.06 0.06 0.06 0.06
DENR Water Quality Guideline
Value for Class " C " Waters ≤7.0 mg/L
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 173
D. 7. Phosphate
Table 157 shows the Phosphate Monitoring Data for CY 2019 of the eight (8) established monitoring
stations of the Govantes-Mestizo River System. As gleaned from the table, the Phosphate data
revealed that all monitoring stations except VIG-1 in the months of November and December met the
DENR Water Quality Guideline of ≤0.5 mg/L for Class C water classification.
Table 157. Phosphate Monitoring Data, CY 2019
STATIO
N
I.D
NAME OF
STATION
Phosphate (mg/L)
Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Min Ma
x Ave
SAN-1 Quirino Bridge <0.05 <0.05 <0.05 <0.05 <0.0
5 0.08
<0.0
5
<0.0
5
<0.0
5 --- --- 0.05 0.08 0.05
VIG-1 Brgy. 4 0.32 <0.05 0.20 - - - 0.19 0.17 0.34 0.56 0.56 0.05 0.56 0.30
VIG-2 Brgy. 6/ Hanging
Bridge * 0.11 0.15 0.05 - - 0.07 -- - 0.35 0.35 0.05 0.35 0.18
VIG -3 Brgy. Pagpartian/
Cabangtalan 0.08 0.14 0.18 0.43 0.25 0.22 0.2 0.12 0.23 --- --- 0.08 0.43 0.21
VIG-4 Brgy.
Capangpangan 0.07 <0.05 0.10 0.10 0.16 0.21 0.12 0.07 0.11 --- --- 0.05 0.21 0.11
VIG-5 Brgy. Beddeng 0.20 0.05 0.22 0.41 0.17 0.18 0.14 0.07 0.16 --- --- 0.05 0.41 0.18
VIG-6 Brgy. Tamag 0.11 0.08 0.24 0.35 0.25 0.25 0.17 0.11 0.18 --- --- 0.08 0.35 0.19
BAN-1 San Mariano * * * * * -- -- -- -- <0.0
5
<0.0
5 0.05 0.05 0.05
DENR Water Quality
Guideline Value for Class " C
" Waters
≤0.5 mg/L
(*) No Data
(-) Stagnancy of the river
(--) Inaccessibility of monitoring station
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 174
D.8. Chloride
Table 158 shows the Chloride Monitoring Data for CY 2019. As gleaned from the table, the Chloride
results revealed that all monitoring stations except SAN-1 and BAN-1 stations did not meet the
DENR Water Quality Guideline of ≤350 mg/L for Class C water classification. The table also showed
that saline water reaches the monitoring stations in some of the monitoring periods.
Table 158. Chloride Monitoring Data, CY 2019
(*) No Data
(-) Stagnancy of the river
(--) Inaccessibility of monitoring station
(---) Prescribed Frequency of Water Quality Monitoring (10 Months) as per DAO 2016-08 has
already been met
STATIO
N
I.D
NAME OF STATION
Chloride (mg/L)
Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Min Max Ave
SAN-1 Quirino Bridge <10 <10 <10 <10 <10 <10 <10 <10 <10 --- --- 10 10 10
VIG-1 Brgy. 4 159 157 177 - - - 1886
2 310
235
9 635 1240 157
1886
2 2987
VIG-2 Brgy. 6/ Hanging
Bridge * 181 147 147 - -
2204
6 -- -
1374
6 9437 147
2204
6 7617
VIG -3 Brgy. Pagpartian/
Cabangtalan
214
1 2316 1394 3653 447
407
9
1126
8 <10 435 260 --- 10
1126
8 2600
VIG-4 Brgy. Capangpangan 69 132 79 231 514 535
8
1224
8 20 170 320 --- 20
1224
8 1914
VIG-5 Brgy. Beddeng 368
7
1177
5 3633
1595
7 351
372
9 4076 <10 320 210 --- 10
1595
7 4375
VIG-6 Brgy. Tamag 483
7
1545
5
1313
4
1890
3 231
373
9 3900 30 465 240 --- 30
1890
3 6093
BAN-1 San Mariano * * * * * -- -- -- -- <10 <10 10 10 10
DENR Water Quality Guideline
Value for
Class " C " Waters
≤350 mg/L
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 175
D.9. Total Suspended Solids (TSS)
Table 159 presents the Total Suspended Solids Monitoring Data for CY 2019. All monitoring stations
except SAN-1 station in the months of June, August and October met the DENR water quality
guideline (TSS ≤80 mg/L) for the Total Suspended Solids parameter.
The high recorded values were noted during the occurrence of rainfall before or on the day of the
sampling period.
Table 159. Total Suspended Solids Quarterly Monitoring Data, CY 2019
(*) No Data
(-) Stagnancy of the river
(--) Inaccessibility of monitoring station
D.10. Fecal Coliform
Results of the Fecal Coliform Monitoring data is presented in Table 160. The annual geometric mean
shows that all monitoring stations except SAN-1 station did not meet the DENR water quality
guideline of 200 MPN/100 ml. Alarming Fecal Coliform values were noted all year round.
STATION
I.D NAME OF STATION
Total Suspended Solids (mg/L)
Feb Mar Apr Ma
y Jun Jul Aug Sep Oct Nov Dec Min
Ma
x Ave
SAN-1 Quirino Bridge 15 9 18 5 169 52 236 79 626 --- --- 5 626 134
VIG-1 Brgy. 4 26 62 7 - - - 5 19 22 12 12 5 62 21
VIG-2 Brgy. 6/ Hanging
Bridge * 9 <2 6 - - 11 -- - 13 13 2 13 9
VIG -3 Brgy. Pagpartian/
Cabangtalan 13 20 11 17 7 10 8 32 32 --- --- 7 32 17
VIG-4 Brgy. Capangpangan 11 19 <2 3 8 7 5 28 22 --- --- 2 28 12
VIG-5 Brgy. Beddeng 24 43 7 17 3 14 6 23 33 --- --- 3 43 19
VIG-6 Brgy. Tamag 25 27 10 15 9 7 4 14 12 --- --- 4 27 14
BAN-1 San Mariano * * * * * -- -- -- -- 5 5 5 5 5
DENR Water Quality Guideline
Value for Class " C " Waters ≤80 mg/L
REGIONAL STATE OF BROWN ENVIRONMENT 2019 176
Table 160. Fecal Coliform Monitoring Data, CY 2019
Station
ID
NAME OF
STATION
PARAMETER
Min Max Geomean Fecal Coliform (FC)
Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
SAN-1 Quirino
Bridge 230 <1.8 8 23 130 2200 9200 790 9400 79 79 2 9400 186
VIG-1 Brgy. 4 2400 >160000 24000 - - - 2400 >160000 160000 160000 * 2400 160000 36754
VIG-2
Brgy. 6/
Hanging
Bridge
* 79 2400 140 - - 2400 -- - 2400 * 79 2400 687
VIG -3
Brgy.
Pagpartian/
Cabangtalan
9200 23 24000 >160000 >160000 92000 24000 35000 >160000 54000 54000 23 160000 26585
VIG-4
Brgy.
Capangpanga
n
5400 >160000 24000 2000 22000 92000 9200 54000 24000 24000 24000 2000 160000 21973
VIG-5 Brgy.
Beddeng 5400 330 330 6629 160000 >160000 16000 35000 92000 160000
16000
0 330 160000 19212
VIG-6 Brgy. Tamag 2400 >160000 24000 2200 >160000 54000 5400 160000 54000 35000 35000 2200 160000 28483
BAN-1 San Mariano * * * * * -- -- -- -- 220 * 220 220 N/A
DENR Water Quality
Guideline for Class
“C” Water
Classification
200 MPN/100ml
(*) No Data
(-) Stagnancy of the river
(--) Inaccessibility of monitoring station
REGIONAL STATE OF BROWN ENVIRONMENT 2019 177
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 178
Table 161 displays the comparison of the two (2) years annual geometric mean for Fecal Coliform
(FC). The Geometric mean of the results of monitoring for CY 2018 and CY 2019 showed that all
seven (7) monitoring stations did not meet the DENR Water Quality Guideline for Class C water
classification of 200 MPN/100mL except at station SAN-1 in CY 2019. However, decrease of 98.07%
was noted for CY 2019 at Station SAN-1.
Table 161. Comparison of two (2) year annual geometric mean for Fecal Coliform (FC)
Stations Locations
Fecal Coliform
CY
2018
CY
2019
% increase/ decrease
from CY 2018- CY 2019
SAN-1 Quirino Bridge 9625 186 98.07% decrease
VIG-1 Brgy. 4 453 36754 8013.47% increase
VIG-2 Brgy. 6/ Hanging
Bridge 204 687 236.76% increase
VIG -3 Brgy. Pagpartian/
Cabangtalan 349 26585 7517.48% increase
VIG-4 Brgy.
Capangpangan 7327 21973 199.89% increase
VIG-5 Brgy. Beddeng 2428 19212 691.27% increase
VIG-6 Brgy. Tamag 5519 28483 416.09% increase
BAN-1 San Mariano - N/A N/A
DENR Water Quality
Guideline for Class “C”
Water Classification
200 MPN/ 100 ml
REGIONAL STATE OF BROWN ENVIRONMENT 2019 179
Table 162 is the annual averages of the ten (10) primary parameters monitored for CY 2019. All the
averages are within the Water Quality Guideline for C waters except some of the monitoring stations
for the parameters Dissolved Oxygen, Biochemical Oxygen Demand, Chloride, Temperature, Total
Suspended Solids and geomean for Fecal Coliform.
Table 162. ANNUAL AVERAGES OF THE PRIMARY PARAMETERS, CY 2019
Station
ID
NAME OF
STATION
PARAMETERS
Averages Geometric
Mean
pH DO BOD NO3-
N PO4 Cl
- Color Temp TSS (FC)
SAN-1 Quirino
Bridge 7.4 8.1 3 0.15 0.05 10 8 30.42 134 186
VIG-1 Brgy. 4 7.5 5.6 14 0.58 0.30 2987 11 29.48 21 36754
VIG-2
Brgy. 6/
Hanging
Bridge
7.8 4.6 10 0.08 0.18 7617 20 31.72 9 687
VIG -3
Brgy.
Pagpartian/
Cabangtalan
7.5 6.0 27 0.56 0.21 2600 13 32.54 17 26585
VIG-4 Brgy.
Capangpangan 7.3 5.1 7 0.92 0.11 1914 9 29.70 12 21973
VIG-5 Brgy.
Beddeng 7.9 8.5 9 0.58 0.18 4375 12 31.51 19 19212
VIG-6 Brgy. Tamag 7.8 7.1 9 0.55 0.19 6093 11 31.60 14 28483
BAN-1 San Mariano 7.8 6.3 N/A 0.06 0.05 10 5 N/A 5 N/A
DENR Water Quality
Guideline for Class
“C” Water
Classification
6.0-
9.0
5.0
mg/L
7.0
mg/L
7.0
mg/L
0.5
mg/L
350
mg/L
75
TCU
25-31
°C
80.0
mg/L
200 MPN/
100
D.11. Trace Metals
Table 163 and Table 164 shows the results of the heavy metal analysis on various sampling points of
the Govantes-Mestizo in CY 2018 and CY 2019, respectively.
a. Arsenic (As)
The results of monitoring in CY 2018 of the five (5) established monitoring stations are
far below the water quality guideline of 0.05 mg/L Arsenic with values of less than 0.01
mg/L.
b. Cadmium (Cd)
The results of the Heavy Metal Analysis in CY 2019 for Cadmium recorded less than
0.001 mg/L which is far below the water quality guideline of 0.005 mg/L.
c. Chromium (Cr)
The five stations of the Govantes-Mestizo River System that were tested for the presence
of chromium in CY 2018 obtained results that are below the DENR water quality
guideline standard of 0.05 mg/L.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 180
d. Copper (Cu)
All five representative stations of the Govantes-Mestizo River System attained a value of
<0.01mg/L in CY 2018. All are within the DENR water quality guideline of 0.02 mg/L
e. Lead (Pb) Four stations were tested for Lead Concentration in CY 2019, all four stations yielded
values that are less than 0.05 mg/L, the DENR Guideline for Lead.
f. Mercury The representative stations all yielded <0.0002 mg/L values of mercury, they have met
the DENR water quality guideline of 0.002 mg/L.
g. Zinc (Zn)
All of the representative stations have met the DENR water quality guideline of less than
2 mg/L.
Table 163. Heavy Metal Monitoring Data, CY 2018
Table 164. Heavy Metal Monitoring Data, CY 2019
Parameters
STATIONS DENR
Water
Quality
Guideline
for Class
C Waters
(mg/L)
Barangay
4
Barangay
Pantay
Daya
Barangay
Pantay
Fatima
Barangay
6
Barangay
Tamag
Arsenic <0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED) 0.05
Cadmium <0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED)
<0.006
(PASSED) 0.005
Chromium <0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED)
<0.02
(PASSED) 0.05
Copper <0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED)
<0.01
(PASSED) 0.02
Lead <0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED)
<0.05
(PASSED) 0.05
Zinc <0.03
(PASSED)
<0.03
(PASSED)
<0.03
(PASSED)
<0.03
(PASSED)
<0.03
(PASSED) 2
Mercury <0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED)
<0.0001
(PASSED) 0.002
Parameters
STATIONS DENR Water Quality
Guideline for Class C
Waters (mg/L) Barangay 4 Barangay
Beddeng
Barangay
Tamag
Quirino
Bridge
Cadmium <0.001
(PASSED)
<0.001
(PASSED)
<0.001
(PASSED)
<0.001
(PASSED) 0.005
Lead <0.005
(PASSED)
<0.005
(PASSED)
<0.005
(PASSED)
<0.005
(PASSED) 0.05
Zinc 0.03
(PASSED)
<0.02
(PASSED)
<0.03
(PASSED)
<0.05
(PASSED) 2
Mercury <0.0002
(PASSED)
<0.0002
(PASSED)
<0.0002
(PASSED)
<0.0002
(PASSED) 0.002
REGIONAL STATE OF BROWN ENVIRONMENT 2019 181
D.12. Inorganic Compounds
An inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is,
a compound that is not an organic compound. [14]
Table 166 shows the Inorganic Compounds
Monitoring Data for CY 2018 and CY 2019.
a. Ammonia
The monitoring data for CY 2019 in the four (4) established monitoring stations met the
guideline value of 0.05 mg/L for ammonia, 0.1 mg/L for Cyanide Free, 275 mg/L Sulfate, 7
mg/L Nitrate and 0.05mg/L and Phosphate.
Table 166. Inorganic Compounds Analysis for CY 2018 and CY 2019
Parameter
s
MONITORING STATIONS DENR Water
Quality
Guideline for
Class C Waters
(mg/L)
VIG-7
Barangay
Pantay
Daya
VIG-4
Baranga
y
Pantay
Fatima
VIG-3
Barangay
6
VIG-6
Barangay
4
VIG-5
Barangay
Tamag
VIG-2
Baranga
y
Beddeng
SAN-1
Quirino
Bridge
CY
2018
CY
2018
CY
2018
CY
2018
CY
2019
CY
2018
CY
2019
CY
2019
CY
2019
Ammonia 1.3 <0.003 0.07 0.008 0.05 0.04 0.02 0.5 0.01 0.05
Cyanide,
Free <0.02 <0.05 0.04 <0.02 <0.004
<0.0
2 <0.004 <0.004 <0.004 0.1
Sulfate - - - 187 - - 91 100 22 275
Nitrate 2.1 <0.0002 1.1 1.7 0.58 0.1 0.55 0.58 0.15 7
Phosphate 0.2 <0.007 0.09 0.1 0.30 0.07 0.19 0.18 0.05 0.5
D.13. OrganoChlorine Pesticides (OCPs)
Table 167 and 168 shows the OrganoChlorine Pesticide Monitoring Data for CY 2018 and CY 2019.
Results of baseline monitoring reflected very low concentrations (not detected), below the DENR
water quality guideline for Class C waterbody. Results do not pose risk to the environment.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 182
Table 167. OrganoChlorine Pesticide Monitoring Data, CY 2018
Parameters
MONITORING STATIONS DENR Water
Quality
Guideline for
Class C Waters
(µg/L)
Barangay 4
Barangay
Pantay
Daya
Barangay Pantay
Fatima Barangay 6
Barangay
Tamag
4,4’-DDD ND ND ND ND ND No Guideline
4,4’-DDE ND ND ND ND ND No Guideline
4,4’-DDT ND ND ND ND ND No Guideline
Aldrin ND ND ND ND ND No Guideline
Alpha-BHC ND ND ND ND ND No Guideline
Alpha Chlordane ND ND ND ND ND No Guideline
Beta-BHC ND ND ND ND ND No Guideline
Chlordane (tech) ND ND ND ND ND No Guideline
Delta-BHC ND ND ND ND ND No Guideline
Dieldrin ND ND ND ND ND No Guideline
Endosulfan I ND ND ND ND ND No Guideline
Endosulfan II ND ND ND ND ND No Guideline
Endosulfan
Sulfate ND ND ND ND ND No Guideline
Endrin ND ND ND ND ND No Guideline
Endrin Aldehyde ND ND ND ND ND No Guideline
Eldrin Ketone ND ND ND ND ND No Guideline
Gamma-BHC
(Lindane) ND ND ND ND ND No Guideline
Heptachlor ND ND ND ND ND No Guideline
Heptachlor
Epoxide ND ND ND ND ND No Guideline
Methoxychlor ND ND ND ND ND No Guideline
Toxaphene ND ND ND ND ND No Guideline
(ND)- not detected
REGIONAL STATE OF BROWN ENVIRONMENT 2019 183
Table 168. OrganoChlorine Pesticide Monitoring Data, CY 2019
Parameters
MONITORING STATIONS DENR Water
Quality Guideline
for Class C
Waters (µg/L)
Barangay
4
Barangay
Beddeng
Barangay
Tamag
Quirino
Bridge
4,4’-DDD ND ND ND ND No Guideline
4,4’-DDE ND ND ND ND No Guideline
4,4’-DDT ND ND ND ND No Guideline
Aldrin ND ND ND ND No Guideline
Alpha-BHC ND ND ND ND No Guideline
Alpha Chlordane ND ND ND ND No Guideline
Beta-BHC ND ND ND ND No Guideline
Chlordane (tech) ND ND ND ND No Guideline
Delta-BHC ND ND ND ND No Guideline
Dieldrin ND ND ND ND No Guideline
Endosulfan I ND ND ND ND No Guideline
Endosulfan II ND ND ND ND No Guideline
Endosulfan
Sulfate ND ND ND ND No Guideline
Endrin ND ND ND ND No Guideline
Endrin Aldehyde ND ND ND ND No Guideline
Eldrin Ketone ND ND ND ND No Guideline
Gamma-BHC
(Lindane) ND ND ND ND No Guideline
Heptachlor ND ND ND ND No Guideline
Heptachlor
Epoxide ND ND ND ND No Guideline
Methoxychlor ND ND ND ND No Guideline
Toxaphene ND ND ND ND No Guideline
(ND)- not detected
D.14. OrganoPhosphorus Compounds (OPPs)
Table 169 and 170 shows the OrganoPhosphorous Compounds Monitoring Data for CY 2018 and CY
2019. The Monitoring Data reflected very low concentrations (not detected), below the DENR water
quality guideline for Class C waterbody. Results do not pose risk to the environment.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 184
Table 169. Organophosphorus Compounds Analysis for CY 2018
Parameters
MONITORING STATIONS DENR Water
Quality Guideline
for Class C Waters
(µg/L)
Barangay
4
Barangay
Pantay Daya
Barangay
Pantay Fatima
Barangay
6
Barangay
Tamag
Azinphosmethyl ND ND ND ND ND No Guideline
Bolstar ND ND ND ND ND No Guideline
Chlorpyrifos ND ND ND ND ND No Guideline
Coumaphos ND ND ND ND ND No Guideline
Demeton-O ND ND ND ND ND No Guideline
Diazinon ND ND ND ND ND No Guideline
Dichlorvos ND ND ND ND ND No Guideline
Disulfoton ND ND ND ND ND No Guideline
Ethoprop ND ND ND ND ND No Guideline
Fenchlorphos ND ND ND ND ND No Guideline
Fensulfothion ND ND ND ND ND No Guideline
Fenthion ND ND ND ND ND No Guideline
Malathion ND ND ND ND ND No Guideline
Merphos ND ND ND ND ND No Guideline
Methyl parathion ND ND ND ND ND No Guideline
Mervinphos ND ND ND ND ND No Guideline
Phorate ND ND ND ND ND No Guideline
Tetrachlorvinphos ND ND ND ND ND No Guideline
Tokuthion ND ND ND ND ND No Guideline
Trichloronate ND ND ND ND ND No Guideline
Table 170. OrganoPhosphorus Compounds Monitoring Data, CY 2019
Parameters
MONITORING STATIONS DENR Water
Quality Guideline
for Class C Waters
(µg/L)
Barangay
4
Barangay
Pantay Daya
Barangay
Pantay Fatima
Barangay
6
Barangay
Tamag
Azinphosmethyl ND ND ND ND ND No Guideline
Bolstar ND ND ND ND ND No Guideline
Chlorpyrifos ND ND ND ND ND No Guideline
Coumaphos ND ND ND ND ND No Guideline
Demeton-O ND ND ND ND ND No Guideline
Diazinon ND ND ND ND ND No Guideline
Dichlorvos ND ND ND ND ND No Guideline
Disulfoton ND ND ND ND ND No Guideline
Ethoprop ND ND ND ND ND No Guideline
Fenchlorphos ND ND ND ND ND No Guideline
Fensulfothion ND ND ND ND ND No Guideline
Fenthion ND ND ND ND ND No Guideline
Malathion ND ND ND ND ND No Guideline
Merphos ND ND ND ND ND No Guideline
Methyl parathion ND ND ND ND ND No Guideline
Mervinphos ND ND ND ND ND No Guideline
Phorate ND ND ND ND ND No Guideline
Tetrachlorvinphos ND ND ND ND ND No Guideline
Tokuthion ND ND ND ND ND No Guideline
Trichloronate ND ND ND ND ND No Guideline
REGIONAL STATE OF BROWN ENVIRONMENT 2019 185
E. MONITORING OF THE AGNO RIVER SYSTEM
As identified in the Agno River Basin Master Plan, the water quality status of the Agno River System
shall be monitored regularly by the EMB and will be reported on a regular basis.
EMB coordinated with CENRO Urdaneta City and CENRO Dagupan City to establish water quality
monitoring stations and profiled the Agno River System. Measurement of baseline on-site data,
obtaining the GPS coordinates of the monitoring stations and collection of water samples. The water
samples were analyzed at EMB laboratory for the primary parameters namely Potential of Hydrogen
(pH), Dissolve Oxygen (DO), Biochemical Oxygen Demand (BOD), Total Suspended Solids (TSS)
and Fecal Coliform.
Three (3) monitoring stations were established in three (3) strategic locations. The upstream station
was located at San Manuel bridge, in the municipality of San Manuel; the midstream station at Don
Teofilo Sison Bridge in the municipality of Rosales and the downstream station at Domalandan bridge
in the municipality of Lingayen. Table 171 presents the established monitoring stations of the Agno
River System and their respective geographic coordinates.
Table 171. Monitoring Stations of the Agno River System
Station
ID Monitoring Stations
Municipality/
City
GPS Coordinates
Latitude Longitude
MAN-1 San Manuel Bridge San Manuel 16°7'53"N 120°41'5"E
ROS-1 Don Teofilo Sison Bridge Rosales 15°53’15” N 120°35’47” E
LIN-2 Domalandan Bridge Lingayen 15°59’13” N 120°13’27” E
RESULTS OF MONITORING
The results of the monthly water quality monitoring of the three (3) monitoring stations in the Agno
River System for 2019 are to wit:
E.1 Potential of Hydrogen (pH)
Table 172 shows the Potential of Hydrogen (pH) Monitoring Data for CY 2019. The monitoring data
revealed that all monitoring stations met the DENR Water Quality Guideline of 6.5-9.0 pH range.
Moroever, the annual average for all the monitoring stations met the DENR Water Quality Guideline.
Table 172. pH Monitoring Data, CY 2019
STATIO
N
I.D
NAME OF STATION
Potential of Hydrogen (pH)
Jan Feb Mar Apr May Ju
n Jul Aug Sep Oct Nov Dec Min Max Ave
MAN-1 San Manuel Bridge 7.9 8.1 7.8 7.8 7.9 7.4 7.3 7.0 7.3 6.9 7.13 6.70 6.7 8.1 7.4
ROS-1 Don Teofilo Sison
Bridge 8.3 8.2 8.2 8.2 8.5 7.9 8.1 7.1 7.2 7.4 7.56 6.70 6.7 8.5 7.8
LIN-2 Domalandan Bridge 8.2 8.6 8.2 8.4 8.8 8.0 8.1 7.3 7.2 7.5 7.04 7.20 7.04 8.8 7.9
DENR Water Quality Guideline
Value for Class " C " Waters 6.5-9.0
REGIONAL STATE OF BROWN ENVIRONMENT 2019 186
E.2 Dissolved Oxygen (DO)
Table 173 presents the Dissolved Oxygen Monitoring Data for CY 2019. As reflected from the table,
all monitoring stations except LIN-2 station in the month of December met the DENR minimum
requirement of 5 mg/L for Class C water classification. The annual average of the DO results also
showed that all of the monitoring stations met the DENR water quality guideline of 5.0 mg/L to
sustain aquatic life.
Table 173. Dissolved Oxygen Monitoring Data, CY 2019
E.3 Biochemical Oxygen Demand (BOD)
Table 174 shows the monitoring data of Biochemical Oxygen Demand (BOD for CY 2019. All three
(3) monitoring stations met the DENR water quality guideline (BOD ≤7 mg/L) for Class C water
classification except LIN-2 station in the month of March, CY 2019.
Table 174. Biochemical Oxygen Demand (BOD) Monthly Monitoring Data, CY 2019
(-) Prescribed Frequency of Water Quality Monitoring (10 Months) as per DAO 2016-08 has already been met
STATIO
N
I.D
NAME OF
STATION
Dissolved Oxygen (DO) (mg/L)
Nov
CY
2018
CY 2019
Jan Feb Ma
r Apr
Ma
y
Ju
n Jul Aug Sep Oct Nov Dec Min
Ma
x Ave
MAN-
1 San Manuel Bridge 7.8 7.6 6.9 6.7 5.9 6.9 7.8 5.4 6.7 7.7 7.9 7.77 7.00 5.4 7.9 7.0
ROS-1 Don Teofilo Sison
Bridge 8.5 8.5 8.0 7.9 7.1 7.7 7.9 8.2 7.6 7.8 8.2 7.52 5.90 5.9 8.5 7.7
LIN-2 Domalandan
Bridge 9.4 8.2 10.1 7.3 8.0 7.1 7.5 7.5 7.0 7 7.4 6.46 3.60 3.6 10.1 7.3
DENR Water Quality
Guideline Value for Class " C
" Waters
≥5.0
STATION
I.D NAME OF STATION
Biochemical Oxygen Demand (BOD) (mg/L)
Nov
CY
2018
CY 2019
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Min Max Ave
MAN-1 San Manuel Bridge 2 4 2 4 2 6 5 1 <1 <1 <1 - 1 6 3
ROS-1 Don Teofilo Sison Bridge 3 4 3 4 2 4 5 2 <1 1 <1 - 1 5 3
LIN-2 Domalandan Bridge 3 4 5 9 2 7 5 <1 <1 1 1 - 1 9 4
DENR Water Quality Guideline Value
for Class " C " Waters ≤7.0
REGIONAL STATE OF BROWN ENVIRONMENT 2019 187
E.4 Color
Based on the tabulated monitoring data for CY 2019 in Table 175, all stations met the maximum
Color requirement of 75 TCU. The Color values range from 5 TCU to 15 TCU. Figure 83 is the
graphical presentation for Color monitoring for the CY 2019.
Table 175. Color Monitoring Data, CY 2019
STATION
I.D NAME OF STATION
Color (TCU)
May Jun Jul Aug Sep Oct Nov Dec Min Max Ave
MAN-1 San Manuel Bridge 5 <5 - 5 - <5 <5 <5 5 5 5
ROS-1 Don Teofilo Sison
Bridge 5 <5 - 10 - <5 5 <5 5 10 6
LIN-2 Domalandan Bridge 10 5 - 15 - 10 10 <5 5 15 9
DENR Water Quality Guideline
Value for Class " C " Waters ≤75 TCU
(-) No sample collected
E.5 Nitrate
Table 176 shows the monitoring data for the monitoring stations of the Agno River System. As
gleaned from the table, the Nitrate results revealed that all monitoring station met the DENR Water
Quality Guideline of ≤7 mg/L for Class C water classification.
Table 176. Nitrate Monitoring Data, CY 2019
STATION
I.D NAME OF STATION
Nitrate (mg/L)
May Jun Jul Aug Sep Oct Nov Dec Min Max Ave
MAN-1 San Manuel Bridge <0.05 0.08 - 0.28 - 0.57 0.54 0.45 0.05 0.57 0.33
ROS-1 Don Teofilo Sison
Bridge <0.05 0.1 - 0.57 - 0.44 0.49 0.46 0.05 0.57 0.35
LIN-2 Domalandan Bridge <0.05 <0.05 - 0.27 - 0.28 0.40 0.29 0.05 0.40 0.22
DENR Water Quality Guideline
Value for Class " C " Waters ≤7.0 mg/L
(-) No sample collected
REGIONAL STATE OF BROWN ENVIRONMENT 2019 188
E.6 Phosphate
Table 177 shows the Phosphate Monitoring Data for CY 2019. As gleaned from the Table, the
Phosphate results revealed that all stations met the DENR Water Quality Guideline of ≤0.5 mg/L for
Class C water classification.
Table 177. Phosphate Monitoring Data for CY 2019
STATION
I.D NAME OF STATION
Phosphate (mg/L)
May Jun Jul Aug Sep Oct Nov Dec Min Max Ave
MAN-1 San Manuel Bridge <.05 <0.05 - <0.05 - <0.05 <0.05 0.06 0.05 0.06 0.05
ROS-1 Don Teofilo Sison Bridge 0.37 <0.05 - <0.05 - <0.05 0.06 <0.05 0.05 0.37 0.11
LIN-2 Domalandan Bridge <0.05 <0.05 - <0.05 - 0.09 0.11 0.05 0.05 0.11 0.07
DENR Water Quality Guideline
Value for Class " C " Waters ≤0.5 mg/L
(-) No sample collected
E.7 Chloride
Table 178 shows the Chloride Monitoring Data for CY 2019. As gleaned from the table, the Chloride
results revealed that all monitoring stations except LIN-2 in the months of May, June, November and
December met the DENR Water Quality Guideline of ≤350 mg/L for Class C water classification.
Table 178. Chloride Monitoring Data, CY 2019
STATION
I.D NAME OF STATION
Chloride (mg/L)
May Jun Jul Aug Sep Oct Nov Dec Min Max Ave
MAN-1 San Manuel Bridge <10 <10 - <10 - <10 <10 <10 10 10 10
ROS-1 Don Teofilo Sison Bridge <10 <10 - <10 - <10 <10 <10 10 10 10
LIN-2 Domalandan Bridge 436 9553 - 20 - <10 790 1190 10 9553 2000
DENR Water Quality Guideline Value
for Class " C " Waters ≤350 mg/L
(-) No sample collected
REGIONAL STATE OF BROWN ENVIRONMENT 2019 189
E.8 Total Suspended Solids (TSS)
Table 179 presents the Total Suspended Solids Monitoring Data for CY 2019. All monitoring stations
except LIN-2 in the month of September met the DENR water quality guideline (TSS ≤80 mg/L) for
the Total Suspended Solids parameter.
Table 179. Total Suspended Solids Monitoring Data, CY 2019
STATIO
N
I.D
NAME OF STATION
Total Suspended Solids (mg/L)
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Min Ma
x Ave
MAN-1 San Manuel Bridge 2 4 3 <2 <2 2 7 3 5 3 2 <2 2 7 3
ROS-1 Don Teofilo Sison Bridge 8 16 12 <2 9 16 9 49 47 15 43 5 2 49 19
LIN-2 Domalandan Bridge 8 3 3 8 44 10 58 48 96 29 27 25 3 96 30
DENR Water Quality Guideline
Value for Class " C " Waters ≤80 mg/L
REGIONAL STATE OF BROWN ENVIRONMENT 2019 190
E.8 Fecal Coliform
Results of the Fecal Coliform Monitoring data is presented in Table 180. The annual geometric mean shows that all monitoring stations except MAN-1 station
did not meet the DENR water quality guideline of 200 MPN/100 ml.
Table 180. Fecal Coliform Monitoring Data, CY 2019
Station
ID
NAME OF
STATION
Fecal Coliform (FC)
Nov.
CY
2018
CY 2019
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec MIN MAX GEOMEAN
MAN-1 San Manuel
Bridge 23 24000 230 230 <1.8 700 <1.8 54010 790 23 79 130 <1.8 1.8 54010 139
ROS-1 Don Teofilo
Sison Bridge 5400 24000 230 790 39 330 790 2400 790 4000 5400 0.06 220 0.06 24000 412
LIN-2 Domalandan
Bridge 790 24000 24000 490 49 490 1300 9200 2400 3500 3500 0.11 49 0.11 24000 696
DENR Water Quality
Guideline for Class “C”
Water Classification
≤200 MPN/100 mL
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 191
F. ADOPT-AN-ESTERO/ WATERBODY PROGRAM
Rivers are essential to human well-being. However, rapid population growth, urbanization and
demand for increased and cheaper food production have damaged natural river systems, causing
many problems such as water pollution, increased flood risk, loss of biodiversity and soil erosion.
Other factor that contribute to river degradation are the poor waste disposal, sewage, garbage and
liquid waste coming from household’s activities, agricultural lands and factories that are directly
discharged into esteros/creeks and rivers. These liquid wastes contain harmful chemicals and toxins,
which make the water poisonous for aquatic animals, plants and including humans.
Indeed, the Adopt-an-Estero Waterbody Program is a collaborative undertaking between and among
the Estero Community, Donor-Partner, Local Government Unit/s and the Department of Environment
and Natural Resources to achieve a cleaner, safer and healthier environment. The main objective of
the Adopt-an-Estero/Waterbody is to clean up canals and creeks of wastes, debris and silt through
community mobilization and information, education and communication programs, the support of the
various organizations, Local Government Units and private sector was enhanced to increase the
coverage of the program.
Since the program was launched, EMB Region I has been convening partners from all over the region
to continuously engage them in the clean-up and rehabilitation particularly segment of an estero and
river tributary they adopted. Activities under the program may include community mobilization,
dredging of the creeks, regular clean-up drive and other livelihood programs.
For this year, the Program achieved another milestone through forged partnerships with existing
Donor Partners (Rotary Club of Uptown Dagupan 2000) who committed to clean-up and rehabilitate
the Santiago Creek located in Dagupan City which is a tributary of Dagupan River which is an
important body of water that runs through the several communities in the City.
To date, this region has a total of forty-seven (47) signed Memorandum of Agreement (MOA)
consisting of forty-six (46) existing MOA that will expire on CY 2020, 2021 and 2023 and one (1)
renewed MOA that will expire on CY 2024 signed by the various organizations from Academe Sector
(2), Hospital (1), NGOs (23), NGAs (2), LGUs (5) and business/industry sectors (15).
The eight (8) years (CY 2011-CY 2019) implementation of the Adopt-an-Estero/Waterbody Program
along the designated Sinocalan-Dagupan River System Water Quality Management Area (SDRS-
WQMA) tremendously recorded 75%-95% decrease in the concentration of coliform in the twenty-
two (22) established water quality monitoring stations in the SDRS-WQMA.
The program was validated through water quality monitoring on the adopted areas for the parameters:
Potential of Hydrogen (pH), Dissolved Oxygen (DO), Biochemical Oxygen Demand (BOD) and Total
Suspended Solids (TSS) to determine its compliance with the DENR Administrative Order 2018-06 or
known as the “Water Quality Guideline and General Effluent Standards of 2016”. This is done to
assess the effectiveness of the program’s activities to the quality of the waterbody.
This region sustained and monitored twenty-three (23) adopted waterbodies consisting of ten (10)
rivers with twelve (12) monitoring stations and thirteen (13) creeks. Quarterly water quality
monitoring was undertaken in the adopted waterbodies.
Generally, the annual average monitoring data for the adopted creeks recorded that the pH, DO, BOD
and TSS met the DENR Water Quality Guideline Value set for Class C waters except in the four (4)
stations for Dissolved Oxygen, six (6) stations for Biochemical Oxygen Demand (BOD) and one (1)
station for Total Suspended Solids (TSS).
On the otherhand, the annual average monitoring data for the adopted rivers reflected that the pH, DO,
BOD and TSS met the DENR Water Quality Guideline Value set for Class C waters except at the
seven (7) stations for DO and six (6) stations for BOD.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 192
In line with the operationalization of Adopt-an-Estero/Waterbody Program and as an strategy to clean
and protect our creeks/esteros and waterbodies pursuant to the IRR of RA 9275 of 2004, this Region
has an on-going assessment of four (4) adopted esteros namely: Arellano Creek, Herrero Creek,
Mariposa Creek and Jose Calimlim Creek which are located within the Central Business District of
Dagupan City. These creeks finally drain into Dagupan River, which is downstream of the Sinocalan
Dagupan River System Water Quality Management Area.
Among the water bodies that have been adopted by donor/partners and cared for by the host
communities themselves are the Bagutan Creek, Turod Creek, Sagunto Creek and Abenoleng River
in Sison, Pangasinan; Macalong River and Burobor Creek in Urdaneta City; Mayombo Creek and
Arellano Creek in Dagupan City; Parongking River in Calasiao, Pangasinan; San Vicente River in
Lingayen, Pangasinan; Sinocalan River in Sta. Barbara, Pangasinan.
MONITORING RESULTS OF THE ADOPT-AN-ESTERO/ WATERBODY PROGRAM
For CY 2019, there were nineteen (19) monitoring stations conducted for water quality monitoring.
There were three (3) from the province of La Union, ten (10) from the province of Pangasinan and six
(6) monitoring stations from the province of Ilocos Norte. Quarterly water quality monitoring and
sampling was undertaken.
POTENTIAL OF HYDROGEN (pH)
All monitoring stations for the adopted creeks with values recorded pH values ranging from 7.1 to
8.2 met the water quality guideline value of 6.0 to 9.0 set for Class D waterbody. Some of the
monitoring stations were not sampled due to stagnancy/drying out of river and the occurrence of
heavy rains during the scheduled of sampling.
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 193
F.1. ADOPTED CREEK/ESTEROs
For this year, this region conducted regular water quality monitoring of twenty-three (23) selected
adopted waterbodies consisting of thirteen (13) creeks and ten (10) rivers with twelve (12)
monitoring stations. The physical-chemical parameters monitored are Potential of Hydrogen (pH),
Dissolved Oxygen (DO), Biochemical Oxygen Demand (BOD) and Total Suspended Solids (TSS).
F.1.1. POTENTIAL OF HYDROGEN (pH)
Generally, all the monitoring stations for the adopted creeks recorded pH values ranging from 7.1 to
9.0 met the water quality guideline value of 6.0 to 9.0 set for Class C waterbody. Some of the
monitoring stations were not sampled due to stagnancy and drying out of river during the scheduled
sampling. Table 181 shows the Potential of Hydrogen (pH) monitoring data for CY 2019.
Table 181. Potential of Hydrogen (pH) Monitoring Data, CY 2019
Name of Estero/Creek pH Concentration
1st 2nd 3rd 4th Average
Carlatan Creek - City of San Fernando, L.U 8.4 8.4 7.2 7.2 7.8
Rabon Creek - Rosario,La Union 7.3 9.0 7.8 -- 8.0
Arellano Creek-Dagupan City 7.6 7.6 7.7 7.2 7.5
Herrero Creek-Dagupan City 7.7 7.7 7.8 7.1 7.6
Mariposa Creek-Dagupan City 7.6 - 7.9 7.3 7.6
Jose Calimlim Creek 8.0 7.8 7.9 7.2 7.7
Burobor Creek-Urdaneta City 7.7 7.6 7.1 7.3 7.4
Turod Creek-Sison, Pang. 7.8 7.7 7.7 7.7 7.7
Old Mangaldan Creek-Mangaldan, Pang. 6.4 - 7.1 -- 6.7
Balaoi Creek - Pagudpud, Ilocos Norte 8.1 7.8 7.6 7.9 7.9
Balaoi Creek 2 - SitioBaniaran, Pagudpud, I.N - -- -- 7.6 7.6
Laoag Creek - Laoag City, Ilocos Norte 7.7 7.7 7.4 6.6 7.3
Tupec Creek - Laoag City, Ilocos Norte 8.0 - 7.6 7.4 7.6
Water Quality Guideline Value 6.5-9.0
set for Class "C" Waters
- Water sampling was not conducted due to stagnant water
--Water sampling was not conducted due to drying out of river bed
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 194
F.1.2. DISSOLVED OXYGEN (DO)
The results of annual average for Dissolved Oxygen (DO) recorded that four (4) out of the
thirteen (13) monitoring stations did not meet the annual average water quality guideline value of 5.0
mg/L DO for Class C waterbody. Table 182 shows the Dissolved Oxygen (DO) monitoring data for
CY 2019.
Table 182. Dissolved Oxygen (DO) Monitoring Data, CY 2019
NAME OF ESTERO Dissolved Oxygen (DO), mg/L
1st 2nd 3rd 4th Ave
Carlatan Creek - City of San Fernando, L.U 7.2 6.9 5.3 *3.9 5.8
Rabon Creek - Rosario,La Union 8.1 12.3 7.7 -- 9.3
Arellano Creek-Dagupan City *0 *0 *1.4 *0 *1.4
Herrero Creek-Dagupan City *0 *3.6 5.7 *0 *4.7
Mariposa Creek-Dagupan City *0 - 6.0 *0 6.0
Jose Calimlim Creek 6.9 5.6 6.6 *2.5 5.4
Burobor Creek-Urdaneta City 6.3 5.4 6.5 6.0 6.0
Turod Creek-Sison, Pang. 8.0 8.1 8.2 7.5 7.9
Old Mangaldan Creek-Mangaldan, Pang. *0 - *2.8 -- *2.8
Balaoi Creek - Pagudpud, Ilocos Norte 6.6 7.2 6.0 7.6 6.9
Balaoi Creek 2 - Sitio Baniaran, Pagudpud, I.N - -- -- 6.8 6.8
Laoag Creek - Laoag City, Ilocos Norte *0 *0 *0.6 *0.5 *0.6
Tupec Creek - Laoag City, Ilocos Norte 6.1 - *3.6 6.1 5.3
Water Quality Guideline Value 5.0
set for Class "C" Waters
*Below water quality guideline value
- Water sampling was not conducted due to stagnant water
--Water sampling was not conducted due to drying out of river bed
F.1.3. BIOCHEMICAL OXYGEN DEMAND (BOD)
The annual average for BOD recorded that six (6) out of the thirteen (13) monitoring stations met the
Biochemical Oxygen Demand water quality guideline value of 7.0 mg/L for Class C waterbody. The
rest of the monitoring stations exceeded the water quality guidelines with BOD values ranging from
14 mg/L to 179 mg/L. The high concentration were attributed by high organic loading due to
stagnation of the creeks and run off from nearby residential areas. Table 183 shows the Biochemical
Oxygen Demand (BOD) monitoring data, CY 2019.
Table 183. Biochemical Oxygen Demand (BOD) Monitoring Data, CY 2019
NAME OF ESTERO Biochemical Oxygen Demand (BOD),
mg/L
1st 2nd 3rd 4th Ave
Carlatan Creek - City of San Fernando, L.U 1 2 2 *** 2
Rabon Creek - Rosario,La Union **14 **25 4 -- **14
Arellano Creek-Dagupan City **125 **98 **50 *** **91
Herrero Creek-Dagupan City **44 **30 2 *** **25
Mariposa Creek-Dagupan City **102 - 1 *** **52
Jose Calimlim Creek **9 5 2 *** 5
Burobor Creek-Urdaneta City 2 3 <1 *** 2
Turod Creek-Sison, Pang. <1 2 <1 *** 1
Old Mangaldan Creek-Mangaldan, Pang. **357 - <1 -- **179
Balaoi Creek - Pagudpud, Ilocos Norte 5 **9 4 *** 6
Balaoi Creek 2 - SitioBaniaran, Pagudpud, I.N - -- -- ***
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 195
Laoag Creek - Laoag City, Ilocos Norte **37 **73 **49 **27 **47
Tupec Creek - Laoag City, Ilocos Norte 3 - 4 2 3
Water Quality Guideline Value 7.0
set for Class "C" Waters
**Exceeded water quality guideline value
-Water sampling was not conducted due to stagnant water
-- Water sampling was not conducted due to drying out of river bed
*** No BOD data during the 4th quarter due to breakdown of BOD incubator as of October 2019
F.1.4. TOTAL SUSPENDED SOLIDS (TSS)
The annual averages for the recorded TSS data shows that almost all monitoring stations met
the water quality guideline value of 80 mg/L for Class C waterbody except at station Balaoi Creek-
Station 1. Table 184 shows the monitoring data for Total Suspended Solids (TSS), CY 2019.
Table 184. Total Suspended Solids (TSS) Monitoring Data, CY 2019
NAME OF ESTERO Total Suspended Solids (TSS),
mg/L
1st 2nd 3rd 4th Ave
Carlatan Creek - City of San Fernando, L.U 5 37 11 11 16
Rabon Creek - Rosario,La Union 24 42 26 -- 31
Arellano Creek-Dagupan City 16 24 43 16 25
Herrero Creek-Dagupan City 25 14 15 9 16
Mariposa Creek-Dagupan City 20 - 30 9 20
Jose Calimlim Creek 32 17 31 6 22
Burobor Creek-Urdaneta City 15 5 21 19 15
Turod Creek-Sison, Pang. 14 3 6 6 7
Old Mangaldan Creek-Mangaldan, Pang. 9 - - -- 9
Balaoi Creek - Pagudpud, Ilocos Norte 40 42 **265 20 **92
Balaoi Creek 2 - SitioBaniaran, Pagudpud, I.N - -- -- 26 26
Laoag Creek - Laoag City, Ilocos Norte 9 <2 18 6 9
Tupec Creek - Laoag City, Ilocos Norte 26 - 17 19 21
Water Quality Guideline Value 80
set for Class "C" Waters
**Exceeded water quality guideline value
- Water sampling was not conducted due to stagnant water
--Water sampling was not conducted due to drying out of river bed
F.2. ADOPTED RIVERS
For CY 2019, there were ten (10) adopted rivers with twelve (12) monitoring stations
conducted for water quality monitoring. There were two (2) monitoring stations in the province of La
Union, nine (9) stations in the province of Pangasinan and one (1) station in the province of Ilocos
Sur.
F.2.1. POTENTIALS OF HYDROGEN (pH)
In general, all monitoring stations met the water quality criteria of Potential Hydrogen (pH)
for Class C waterbody. The Parongking River was stagnant due to the presence of massive water lilies
and kangkong. Table 185 shows the monitoring data for Potential of Hydrogen (pH).
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 196
Table 185. Potential of Hydrogen (pH) Monitoring Data, CY 2019
NAME OF RIVER Potential of Hydrogen (pH)
1st 2nd 3rd 4th Ave
Alipang River 7.1 - 7.7 7.2 7.3
Palina River 7.7 8.7 7.9 8.2 8.1
Tambac River-Dagupan City 7.9 7.8 7.6 7.1 7.6
Dawel River-Dagupan City 7.7 8.1 7.6 6.6 7.5
Tanap River-Dagupan City 7.2 7.9 7.8 7.4 7.6
Macalong River-Urdaneta City 7.7 7.6 7.5 7.5 7.6
Parongking River – Upstream-Calasiao, Pang. 7.6 -- 7.2 7.6 7.5
Parongking River – Downstream-Calasiao, Pang. 7.8 -- 7.4 7.6 7.6
Abenoleng River (Upstream)-Sison, Pang. 7.7 8.1 7.9 7.5 7.8
Abenoleng River (Downstream)-Sison, Pang. 7.8 7.7 8.0 7.7 7.8
San Vicente River-Lingayen, Pang. 7.9 7.7 7.4 7.9 7.7
Soccoc River - Suksukit, Sto. Domingo 7.5 7.6 7.6 7.4 7.5
Water Quality Guideline Value 6.5-9.0
set for Class "C" Waters
(-) Water sampling was not conducted due to stagnant water
-- Water sampling was not conducted due to drying out of river bed
F.2.2. Dissolved Oxygen (DO)
Annual Average for Dissolved Oxygen (DO) recorded that seven (7) out of twelve (12) monitoring
stations recorded below the minimum requirement of 5mg/L Dissolved Oxygen (DO) set for Class C
waterbody. The rest met the water quality guideline value of 5.0mg/L. Table 186 shows the
monitoring data for DO.
Table 186. Dissolved Oxygen (DO) Monitoring Data, CY 2019
NAME OF RIVER Dissolved Oxygen (DO), mg/L
1st 2nd 3rd 4th Ave
Alipang River 6.3 - 7.8 6.5 6.9
Palina River 9.0 7.0 8.4 8.9 8.3
Tambac River-Dagupan City *1.1 *4.0 5.2 *4.6 3.7
Dawel River-Dagupan City 5.5 5.0 5.0 *3.9 4.7
Tanap River-Dagupan City *0.8 *4.7 5.6 *4.0 3.8
Macalong River-Urdaneta City 6.3 5.0 6.0 5.8 5.8
Parongking River – Upstream-Calasiao, Pang. *0 -- *3.0 *3.4 3.2
Parongking River – Downstream-Calasiao, Pang. *4.1 -- *2.7 *0.3 2.4
Abenoleng River (Upstream)-Sison, Pang. 8.0 8.2 10.8 7.8 8.7
Abenoleng River (Downstream)-Sison, Pang. 7.8 7.6 9.2 7.9 8.1
San Vicente River-Lingayen, Pang. *1.4 *4.6 *2.4 7.5 4.0
Soccoc River - Suksukit, Sto. Domingo *0 *4.4 *4.4 5.2 4.7
Water Quality Guideline Value 5.0
set for Class "C" Waters
*Below water quality guideline value
-- Water sampling was not conducted due to drying out of river bed
- Water sampling was not conducted due to stagnant water
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 197
F.2.3. BIOCHEMICAL OXYGEN DEMAND (BOD)
Tabulated monitoring data revealed that almost half (6/12) of the monitoring stations exceeded the
water quality guideline value of 7.0 mg/L BOD set for class C waterbody for the annual average.
Table 187 show the monitoring data for BOD.
Table 187. Biochemical Oxygen Demand (BOD) Monitoring Data, CY 2019
NAME OF RIVER Biochemical Oxygen Demand
(BOD), mg/L
1st 2nd 3rd 4th Ave
Alipang River **10 - <1 *** 6
Palina River 4 5 1 *** 3
Tambac River-Dagupan City **15 **13 2 *** **10
Dawel River-Dagupan City 4 8 3 *** 5
Tanap River-Dagupan City **12 **10 2 *** **8
Macalong River-Urdaneta City 2 6 3 *** 4
Parongking River – Upstream-Calasiao, Pang. **67 -- 4 *** **36
Parongking River – Downstream-Calasiao, Pang. **13 -- **23 *** **18
Abenoleng River (Upstream)-Sison, Pang. 2 2 4 *** 3
Abenoleng River (Downstream)-Sison, Pang. <1 3 <1 *** 2
San Vicente River-Lingayen, Pang. **15 3 **9 *** **9
Soccoc River - Suksukit, Sto. Domingo **45 3 7 6 **15
Water Quality Guideline Value 7.0
set for Class "C" Waters
-Water sampling was not conducted due to stagnant water
-- Water sampling was not conducted due to drying out of river bed
**Exceeded water quality guideline value
*** No BOD data during the 4th quarter due to breakdown of BOD incubator as of October 2019
F.2.4. TOTAL SUSPENDED SOLDS (TSS)
The annual average for Total Suspended Solids (TSS) recorded that all the monitoring stations
monitored met the water quality guideline value of 80 mg/L TSS. Table 188 shows the monitoring
data of Total Suspended Solids (TSS).
Table 188. Total Suspended Solids (TSS) Monitoring Data, CY 2019
NAME OF RIVER Total Suspended Solids (TSS), mg/L
1st 2nd 3rd 4th Ave
Alipang River 8 - 36 4 16
Palina River <2 3 7 3 4
Tambac River-Dagupan City 17 30 23 14 21
Dawel River-Dagupan City 10 23 12 7 13
Tanap River-Dagupan City 14 20 24 16 19
Macalong River-Urdaneta City 17 26 15 12 18
Parongking River – Upstream-Calasiao, Pang. 7 -- - 9 8
Parongking River – Downstream-Calasiao, Pang. 11 -- 7.0 8 9
Abenoleng River (Upstream)-Sison, Pang. 5 <2 12 3 6
Abenoleng River (Downstream)-Sison, Pang. 10 24 5 5 11
San Vicente River-Lingayen, Pang. 33 11 12 16 18
Soccoc River - Suksukit, Sto. Domingo 8 11 8 21 12
Water Quality Guideline Value 80.0
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 198
set for Class "C" Waters
*Exceeded water quality guideline value
(-) Water sampling was not conducted due to stagnant water
-- Water sampling was not conducted due to drying out of river bed
Comparison Of Monitoring Data For Dissolved Oxygen (Do) and Biochemical Oxygen Demand
(BOD), CY 2012-CY 2019
Table 189. Dissolved Oxygen (Do) Monitoring Data of Adopted Creeks/Esteros, CY 2012-CY
2019
NAME OF
CREEK
PARAMETER
REMARKS DISSOLVED OXYGEN
2012 2013 2014 2015 2016 2017 2018 2019
Carlatan Creek 8.0 5.4 5.5 4.8 5.8 With
Improvement
Rabon Creek 6.0 7.3 6.0 6.5 5.9 3.9 4.3 9.3 With
Improvement
Arellano Creek 0 0 0 7.8 0.2 0.6 0.2 1.4 With
Improvement
Herrero Creek 2.0 2.7 6.2 7.2 1.0 1.8 1.0 4.7 With
Improvement
Mariposa Creek 0 0 0 7.2 0 0.7 0.4 6.0 With
Improvement
Jose Calimlim
Creek
3.0 3.3 4.1 6.4 4.0 5.4 With
Improvement
Burobor Creek 6.0 6.0 Passed
Turod Creek 7.3 7.7 8.9 8.1 8.1 8.4 7.9 Passed
Old Mangaldan
Creek
2.2 1.1 2.5 2.8 With
Improvement
Balaoi Creek 8.0 5.6 7.5 6.9 Passed
Balaoi Creek -2 6.1 7.7 6.8 Passed
Laoag Creek 7.3 5.0 0.6 Decreasing
Tupec Creek 4 4.7 5.3 With
Improvement
Water Quality
Guideline Value
set for Class C
waters
5.0
Below water quality guideline value
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 199
Table 190. Dissolved Oxygen (Do) Monitoring Data of Adopted Rivers,
CY 2012-CY 2019
NAME OF RIVERS
PARAMETER
REMARKS DISSOLVED OXYGEN
2012 2013 2014 2015 2016 2017 2018 2019
Alipang River
(Upstream)
8.0 7.2 5.9 7.3 7.4 6.7 6.2 6.9 Passed
Palina River 8.4 9.2 8.3 Passed
Tambac River 5.0 2.8 4.0 5.6 4.2 5.2 3.7 Decreasing
Dawel River 5.1 4.0 5.0 2.6 5.4 5.5 4.7 Decreasing
Tanap River 5.3 4.7 3.8 Decreasing
Macalong River 6.0 5.9 5.8 6.7 5.5 5 6.2 5.8 Passed
Parongking River –
Upstream
5.0 5.3 8.3 4.5 2.8 3.3 4.0 3.2 No Improvement
Parongking River –
Downstream
6.0 6.5 5.2 6.2 5.8 3.5 0.5 2.4 With
Improvement
Abenoleng River
(Upstream)
6.7 7.3 7.9 8.3 8 9.3 8.7 Passed
Abenoleng River
(Downstream)
7.7 7.8 8.8 9.5 9.2 9.7 8.1 Passed
San Vicente River 7.9 4.4 5.8 5.9 4.0 Decreasing
Soccoc River 4.8 5.4 4.7 Decreasing
Water Quality
Guideline Value set
for Class C waters
5.0
Below water quality guideline value
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 200
Table 191. Biochemical Oxygen Demand (Bod) Monitoring Data of Adopted Creeks/ Esteros, CY 2012-
CY 2019
NAME OF CREEK
PARAMETER
REMARKS BIOCHEMICAL OXYGEN DEMAND
20
12
20
13
20
14 2015 2016
201
7 2018 2019
Carlatan Creek
9 7 3 6 2 Decreasing
Rabon Creek 6 5
*2
7 5 *26
*13
2 *86
*14 With
Improvement
Arellano Creek 12 12
*4
9 *37 *85 *70 *80
*91
Increasing
Herrero Creek 10 9
*4
2 *21 *72 *26 *74
*25 With
Improvement
Mariposa Creek
*3
5
*1
9
*6
3 *33 *36 *51 *84
*52 With
Improvement
Jose Calimlim Creek
*1
6 8
6 3 11
5 With
Improvement
Burobor Creek 6 2
With
Improvement
Turod Creek 1 2 2 3 3 3
1 With
Improvement
Old Mangaldan Creek
*40 *56 *39 *179 Alarming
Balaoi Creek
3 6 3 6 Passed
Balaoi Creek -2
2 3 **
Laoag Creek *27 *43 *47
No
Improvement
Tupec Creek *30 10 3
With
Improvement
Water Quality
Guideline Value set
for Class C waters
7
*Exceeded water quality guideline value
** No data due to breakdown of BOD incubator
REGIONAL STATE OF BROWN
ENVIRONMENT 2019 201
Table 192. Biochemical Oxygen Demand (BOD) Monitoring Data of Adopted Rivers, CY 2012-
CY2019
NAME OF RIVER
PARAMETER
REMARKS BIOCHEMICAL OXYGEN DEMAND
20
12
20
13
201
4
201
5
201
6
20
17 2018 2019
Alipang River
(Upstream) 7 2 6 2 6 4 4 6
Passed
Palina River 2 3 3 Passed
Tambac River 5 *8 *42 *10 6 6 *8
*10 No
Improvement
Dawel River
6 4 4 *9 7 5 5 Passed
Tanap River 4 7 *8 Increasing
Macalong River 6 5 4 7 4 *9 4 4 Passed
Parongking River –
Upstream 3 4 *38 *33 *16
*1
7 *21
*36 No
Improvement
Parongking River –
Downstream 3 3 *14 6 *12
*3
8 *46
*18 No
Improvement
Abenoleng River
(Upstream) 3 4 3 3 3 3
3
Passed
Abenoleng River
(Downstream) 2 *25 2 1 2 2
2
Passed
San Vicente River 5 *18 2 5 *9 Increasing
SoccocRiver
*1
1 4 *15
Increasing
Water Quality
Guideline Value set
for Class C waters
7
*Exceeded water quality guideline value
REGIONAL STATE OF BROWN ENVIRONMENT 2019 194
ENVIRONMENTAL IMPACT ASSESSMENT
Overview of Legal Basis
The Presidential Decree (PD) No. 1586 or also known as the Philippine
Environmental Impact Statement (EIS) System was enacted and implemented in June 11,
1978 to establish and institutionalize a system that balances environmental protection and
socio-economic development. It was established to enhance the Environmental Impact
Statement as stated in the laws issued by the former President Ferdinand Marcos in June 6,
1977: the Philippine Environmental Policy or PD 1151 and the Philippine Environment Code
or PD 1152. These two Presidential Decrees were enacted in order to continue the policy of
the State (PD 1151, s. 1977):
a) To create, develop, maintain and improve conditions under which man and nature
can thrive in productive and enjoyable harmony with each other;
b) To fulfill the social, economic and other requirements of present and future
generations of Filipinos; and
c) To insure the attainment of an environmental quality that is conducive to a life of
dignity and well-being.
Reiterating the policy statement under PD 1151, the Philippine EIS System had been
established which specifically states “There is hereby established an EIS system founded and
based on the EIS required, under Section 4 of PD 1151, of all agencies and instrumentalities
of the National Government including Government Owned Companies and Corporations
(GOCCs) as well as private corporations, firms and entities, for every proposed project and
undertaking which significantly affect the quality of the environment. This law focuses in the
assessment of direct and indirect impacts of a project on the biophysical and human
environment and ensuring implementation of appropriate environmental protection and
enhancement measures. Further, it was through the issuance of Proclamations 2146 and 803
that defined the main categories of environmentally critical projects (ECP) and
environmentally critical areas (ECA). Updates and streamlining of guidelines to strengthen
the implementation of the Philippine EIS System have been provided by the issuances of
several administrative orders and memorandum circulars such as the DENR Memorandum
Circular 2010-14 that provided “standardization of requirements in the implementation of
EIS System;” and EMB Memorandum Circular No. 2007-002 which on the other hand,
described the screening coverage and other application requirements under the said law.
Amendment and/or update on these guidelines in consideration of EMB’s experience/history
of processing led to the issuance of the EMB Memorandum Circular No. 2014-005:
Revised Guidelines for Coverage Screening and Standardized Requirements, defining the
four (4) main categories of environmentally critical projects (ECPs), and the twelve (12)
categories of environmentally critical areas (ECAs) that require an Environmental
Compliance Certificate (ECC) prior implementation, and streamlining the basic requirements
to be submitted for every type/status/category of the proposed project/undertaking. The
National Environmental Protection Council (NEPC) which is now, Environmental
Management Bureau under the DENR, is the implementing agency for issuance of
administrative regulations and guidelines concerning the effective planning, management and
regulation to address the environmental problems in the country.
Through the years, the PD 1586 has been enhanced and polished through issuances of
Department Orders, Presidential Proclamation, Executive Orders and Implementing Rules
REGIONAL STATE OF BROWN ENVIRONMENT 2019 195
and Regulations (IRR) which defined the procedural activities and applicability of such laws
on various projects as detailed in the Department of Environment and Natural Resources
(DENR) Administrative Order No. 30, series of 2003 or the Revised Procedural Manual.
Further, updates on the provisions and guidelines under PD1586 were executed and
established through the following DAOs:
a) EMB Memorandum Circular No. 2001-01: Guidance of the Implementation of
DAO 2000-05 regarding Scope of the EIS Programmatic Compliance Policy
b) EMB Memorandum Circular No. 2002-002: Guidelines for the Implementation
of AO No. 99-37 re: Environmental Revolving Fund
c) EMB Memorandum Circular No. 2004-001: Non-Requirement of Barangay
and/or Local Government Unit Endorsements and Locational Clearances for CNC
Applications
d) EMB Memorandum Circular No. 2007-001 : Environmental Impact
Assessment (EIA) Review Manual
e) EMB Memorandum Circular No. 2007-002: Revised Procedural Manual for
DENR Administrative Order No. 30, Series of 2003 (DAO 2003-30
f) EMB Memorandum Circular No. 2010-002: Clarification to DENR MC 2010-
14 and other EIS System Policy Issuances
g) EMB Memorandum Circular No. 2010-004: Guidelines for use of Screening
and Environmentally Critical Area (ECA) Map Systems
h) EMB Memorandum Circular No. 2011-002: Renewable Energy Projects to be
covered by the EIS System
i) EMB Memorandum Circular No. 2011-005: Incorporating Disaster Risk
Reduction (DRR) and Climate Change Adaptation (CCA) concerns in the
Philippine EIS System
j) EMB Memorandum Circular No. 2013-003: Establishment of Registry System
for Environmental Impact Assessment Practitioners
k) EMB Memorandum Circular No. 2014-004: Declaring Class 1 and 2 caves as
Environmentally Critical Areas (ECAs)
l) EMB Memorandum Circular No. 2014-005: Guidelines for Coverage Screening
and Standardized Requirements under PEISS amending relevant portion of MC
2007-002
m) EMB Memorandum Circular No. 2014-08: Inclusion of Mt. Hamiguitan Range
and Wildlife Sanctuary in ECA
n) EMB Memorandum Circular No. 2015-003: Implementation of Online
Processing of CNC applications for Category D Projects under the PEISS
o) EMB Memorandum Circular No. 2015–008: Implementation of Online
Processing of ECC Applications for Category B Projects requiring IEE Checklist
Report Forms under the PEISS
p) EMB Memorandum Circular No. 2015-009: Processing and Issuance of ECC
for Category B Projects
q) EMB Memorandum Circular No. 2016-001: Requiring Online Submission of
CMR under PEISS
r) EMB Memorandum Circular No. 2016-006: ECC Applicants for Mining
Projects including Sand and Gravel Quarry projects
s) EMB Memorandum Circular No. 2018-002: Adjustment of Documentary
Stamp Fee for CNC and ECC Online applications
t) EMB Memorandum Circular No. 2018-004: Amending Section 1 of
Memorandum Circular No. 2016-001 Requiring Online Submission of
REGIONAL STATE OF BROWN ENVIRONMENT 2019 196
Compliance Monitoring Report under the Philippine Environmental Impact
Statement to include non-Environmentally Critical Projects (non ECPs)
u) DENR AO 2017-14: Online Transmission of Data from Continuous Emission
Monitoring System (CEMS) and Closed Circuit Television (CCTV) of Major
Industries;
v) DENR AO 2017-15: Guidelines on Public Participation under the Philippine
Environmental Impact Statement (EIS) System;
w) EMB Memorandum on NIPAS Act of 1992 (RA 11038) dated August 9, 2018
x) DENR AO 2018-14: Guidelines on the Issuance of Area Clearance for
Reclamation Projects and Proclamation/ Special Patents over Reclaimed Lands
y) DENR AO 2018-18: Establishing a Centralized Management and Coordinative
Mechanism at the Regional Offices of DENR, MGB and EMB and Designating
the DENR Regional Executive Director Providing Overall Command of Regional
Operations;
z) EMB Memorandum Circular 2019-003: Updated Guidelines in the processing
and issuance of ECC for Category B Projects
Identification and mitigation of any adverse or significant environmental impacts of
proposed and existing projects/undertakings are determined through the conduct of various
EIA studies in order to formulate sound Environmental Management and Monitoring Plans
which are required in the EIA Application Process, which will be validated throughout
project implementation by EMB Region 1. Participation and coordination with the various
stakeholders in the region including the local government units (LGUs), national government
agencies (NGA)s, academe, non-governmental organizations (NGOs), religious groups,
cultural groups, and other relevant stakeholders of the projects within the region are being
maintained and strengthened to achieve a common goal: “to ensure a rational balance
between environmental protection and socio-economic development.”
I. Issuance of Environmental Compliance Certificate (ECC) and Certificate of
Non-Coverage (CNC)
Pursuant to the EMB Memorandum Circular No. 005, series of 2014 of the “Revised
Guidelines for Coverage Screening and Standardized Requirements under the Philippine
Environmental Impact Statement System (PEISS),” issued on July 7, 2014, amending
relevant portions of MC 2007-002, projects or undertakings are classified into four (4)
categories namely:
Category A (Environmentally Critical Projects or ECPs);
Category B (Non-ECPs in Environmentally Critical Area);
Category C (enhancement projects); and
Category D (not covered projects).
Moreover, the screening and standardization of requirements covering the additional
activities or undertakings as deemed relevant based on the EMB’s experience include the
various types of EIA Report to be required for every project category as well as the
processing and deciding authority based on the category, type and status of implementation of
the project. EMB Memorandum Circular No. 009, series of 2015 (dated August 4, 2015)
mandated that ECC applications for new and single projects under Category B requiring an
Initial Environmental Examination (IEE) Checklist shall be processed and issued online,
REGIONAL STATE OF BROWN ENVIRONMENT 2019 197
while all other proposed projects requiring an EIS and IEE for multiple projects and projects
with modification shall be filed and processed manually. Likewise, processing and issuance
of CNCs under Category D projects are implemented through an online system following the
EMB MC No. 003, series of 2015 issued on January 20, 2015. The EMB Online System is
part of the Bureau’s compliance with the Republic Act No. 9485 otherwise known as the
Anti-Red Tape Act of 2007 on the “No Contact Policy” of the government. Processing
timeframe for ECC and CNC are still twenty (20) working days and seven (7) working days,
respectively, as prescribed in EMB MC No. 14, series of 2010.
Due to the directive of the present administration to expedite processing of permits
and clearances for purposes of eliminating graft and corruption, the Republic Act No. 11032
otherwise known as “An Act Promoting Ease of Doing Business and Efficient Delivery of
Government Services amendment for the purpose Republic Act No. 9485 otherwise known as
the Anti-Red Tape Act of 2007, and for other Purposes,” the Bureau had issued the updated
guidelines in the processing and issuance of ECC for All Category B projects under the EMB
Memorandum Circular No. 003, series of 2019 dated March 26, 2019. In compliance with the
RA 11032 vis-à-vis continuing effort of the Bureau in improving the EIS system, ALL
applications for ECC for Category B projects shall now be processed and issued through the
EMB Online System. Further, the application requirements for online processing shall
include the revised Initial Environmental Examination (IEE) Checklist, and the following
documentary requirements:
a) Geotagged photographs of project site (taken for last 30 days);
b) Topographic Map of impact/affected areas (at least 1km from the project
boundaries) Certification from LGU on the compatibility of proposed project with
existing land use plan (e.g. Certificate of Viability or Zoning
Certification/Clearance);
c) Site Development and/or Vicinity map signed by registered professionals
d) Project/Plant layout signed by registered professionals; and
e) Proof of authority over the project site (land title, lease contract, deed of absolute
sale, etc.)
Section 5 of the same MC states “All ECC applications for Category B projects shall
be processed and approved, if complete within seven (7) days from receipt online in
accordance with Section 2 of the same Memorandum Circular. Otherwise, they shall be
automatically approved and shall, as a consequence thereof, be issued the corresponding
ECC. Furthermore, projects under Category B-Environmental Impact Statement (EIS)-
threshold shall be reviewed by the EMB Regional Office without the assistance of Third
party reviewer, hence review fund shall no longer be imposed.
However, recent Memorandum from the EMB Director dated November 14, 2019
with the subject: “Harmonization on the Implementation of EMB MC No. 2019-003,”
wherein MC 2019-003 is “held in abeyance pending revision of the EMB Citizen’s Charter,
pursuant to RA No. 11032.” Thus, processing of ECC applications for Category B-EIS-
threshold projects are reverted to manual submission of EIA Report and documentary
requirements prescribed in the previous guidelines under EMB 2014-005 and shall be
subjected to undergo the three-level scoping activities and substantive review by external EIA
reviewers in accordance with the approved Work and Financial Plan (WFP) following the
guidelines on review fund under DENR Administrative Order No. 2003-30 (Revised
Procedural Manual for PD 1586). Likewise, processing of minor amendment applications for
REGIONAL STATE OF BROWN ENVIRONMENT 2019 198
ECC shall be reverted to manual processing; while major amendment ECC applications shall
be processed though the EMB online system.
Figure 1. Summary Flowchart of the EIA Process (DAO 2003-30)
A detailed procedural flow of the PEISS-based projects is described in the Revised
Procedural Manual of DAO 2003-30. The overview of the EIA application process is as
follows:
1) Scoping – this first step will mandate the proponent to submit requirements for
application outside the EIA process. The scope includes:
a) Social Preparation or Information, Education, and Communication (IEC) of
various stakeholders - The information will be used as basis for identification
of stakeholders and issues in preparation for Public Scoping.
b) Request for Scoping with Environmental Management Bureau (EMB)- The
proponent will submit a list of requirements per DAO 2017-15 which are; 1)
Request for public scoping to the EMB RO within three (3) months from the
conduct of social preparation; 2) Proof of conduct of IEC 3) Initial Perception
Survey Results; 5) Project Description Report for Scoping; 6) Proposed list of
invitees for the public scoping; 7) Draft invitation letter (to be signed by
REGIONAL STATE OF BROWN ENVIRONMENT 2019 199
EMB) and IEC materials in preparation of the scoping; and 8) Draft
presentation of the project during the public scoping.
c) Review Team Formation, Scheduling of Three-Level Scoping Activity. EMB
will form the prospective Review Team (RT) within five (5) working days
from receiving the request.
d) Conduct of Three-Level Scoping Activity: 1) Project Briefing, proponent
presents a project overview with the RT. 2) Public Scoping, community
sectors will raise their issues with project stakeholders. 3) Technical Scoping
with RT/EIA Preparer/s and the Proponent have already reviewed, finalized
and signed the project overview. 4) Final Approval of Scoping Checklist,
EMB CPD Chief & EIA Section Chief reviews and approves the EIA SPSC.
2) EIA Study and Report Preparation – this second step requires public involvement.
DENR-EMB personnel may clarify procedural and technical matters on the EIA
process but is not allowed to take part in the preparation of the report. Preparation
of forms (outline of EIA Reports for PEIS, EIS, PEPRMP and EPRMP) for: a)
Impacts Management Plan (IMP), b) Social Development Plan (SDP) Framework,
c) Information, Education and Communication (IEC) d) Framework and
Environmental Monitoring Plan (EMoP) are included.
3) EIA Report Review and Evaluation – another proponent driven step.
a) Procedural Screening of EIA Report. Proponent will submit a copy of EIA
Report (filled-out Procedural Screening portion of the SPSC) within three (3)
days from receiving.
b) Payment of filing fee/ Set up Review Fund. Proponent with the DENR-EMB
Fund Manager enters into a MOA for the estimated Review Fund.
c) Submission of Procedurally-accepted Application Documents: 1)
Programmatic EIS - 10 Hard copies + 1 CD, 2) EIS - 7Hard copies + 1 CD, 3)
Programmatic EPRMP - 5Hard copies+ 1 CD, and 4) EPRMP - 5Hard copies
+ 1 CD
4) Substantive Review – DENR-EMB driven or controlled process
a) Reconvening of Review Team (RT) and Distribution of EIA Report copies to
RT members. EMB convenes the EIA Review Committee and Resource
Person through a formal invitation/contract. EIARC individually reviews EIA
Report and fills up the Pro-forma Additional Information (AI) Request (Annex
2-24) for submission before or during the 1st RT Meeting.
b) Review Proper by Review Team (EMB CH, EIARC, RP). Review Proper
duration is inclusive of a maximum of two (2) Additional Information (AIs)
(except for EMB RO AIs, responses for which are outside the EMB review
timeline).
c) 1st Review Team Meeting. EIARC members submit their AI Forms for internal
discussion among EIARC members, then with the Proponent and subsequent
consolidation by the EIARC Chair for submission to the EMB within 5 days
from the meeting day. EMB or EIARC members will be responsible for the
selection of EIARC Chair.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 200
d) Site Visit (SV), Public Consultation (PC) or Public Hearing (PH). 1) PEIS – a
must for SV and PH, 2) EIS – a must for SV, PH, and PC (if public hearing is
waved), 3) PEPRMP – an option for SV. 4) EPRMP – an option for SV.
e) 2nd/ 3rd Review Team (RT) Meeting. Number of workdays for submission of
response by proponent for every AI has a minimum of seven (7) days for
EPRMP and a maximum of twenty (20) days for PEIS.
f) Submission of EIARC Report by EIARC Chair. EIARC Chair at the latest shall
submit the EIARC Report within five (5) days from the last EIARC meeting.
g) Submission of Review Process Report (RPR)/ Recommendation by EMB Case
Handler. The RPR and its approval as well as clearance on Decision
Document for release to Endorsing Authority are included in the Review
Proper duration.
5) Endorsement of Recommendation. Endorsing Authority is either the EMB Chief
or EMB Director and the estimated workdays in endorsing the recommendation
will have a minimum of five (5) days for EPRMP and a maximum of thirty (30)
days for PEIS/PEPRMP/EIS.
6) Sign-off/ Issuance of Decision Document. Proponent will sign the Sworn
Statement of Full Responsibility on ECC Conditions prior to the official release of
the ECC.
7) Transmittal of ECC to Concerned GAs/LGUs. Using Annex 2-30b, the EMB will
transmit the ECC to incorporate recommendations into the decision-making
process.
The documented procedures for the manual and online processing of applications for
ECCs and CNCs are being followed by this regional office in accordance with the latest
guidelines set under the above-cited DAOs, and memoranda. (Refer to Annex G for the
Citizen’s Charter for processing of ECC, CNC and other certifications under PD 1586)
REGIONAL STATE OF BROWN ENVIRONMENT 2019 201
Table 193. Summary of ECCs Issued in Every Province per Specific Type of Project
Project Types/ Province PANGASINAN LA UNION ILOCOS
SUR
ILOCOS
NORTE
A Agriculture, Food and
Related Industries 13
Rice mill 5
2 1
Dressing Plant 1
Feed mill
1
Ice plant 1
Agricultural/Food
Warehouse 1
Agricultural/Food
Manufacturing 1
B Building, Housing,
Storage Facilities and
Other Structures
27
Commercial 1
Condominium 2
1
Hospital 1 2 2
Laboratory (with PCL) 1
Memorial Park 2
Subdivision 8 1
Warehouse 1
1
Hotel
1
Mall
1
Office
2
C Fishery Projects 4
4
D Forestry Projects
1
Wildlife Farming - Aviary
1
E Infrastructure Projects
67
Road 16 9 8 12
Bridge 2 1 4
Water Supply System 2 3 5 5
F Livestock Animal
Industries 38
Piggery 10
3 2
Poultry 17
3 2
Other Livestock Animals
(e.g. goats, cattle) 1
G Other pipelines/cables
1
1
H Other
processing/manufacturing
industries
2
Rubber 1
Beverage Manufacturing 1
I Petroleum Industries
109
Gasoline Refilling Station 51 13 18 25
REGIONAL STATE OF BROWN ENVIRONMENT 2019 202
LPG Refilling Facilities 2
J Power Plants
4
Renewable Energy - Wind
Power 1
Renewable Energy -
Battery Storage Facility 1
Waste-to-Energy - Biogas 1
Waste-to-Energy - Power 1
K Resource Extractive
Industries 118
Sand and Gravel Quarry 23 29 15 34
Shale Quarry
3
Siliceous Materials Quarry 3
Non-Metallic Materials
Quarry 1
Mineral Processing
Facilities 2
Batching, Crushing, SAG
washing, etc. 6 1 1
L Resort and Other
Tourism/Leisure Projects 35
Resort 13 5 7 5
Hotel
1
Condominium
2
Villas/Restaurant
2
M Other Transport
Facilities 1
Seaport
1
N Waste Management
Facilities 13
Sanitary Landfill 4 4 2 3
TOTAL 186 78 76 93 433
For the CY 2019, there were a total of Four Hundred Thirty Three (433) projects
that have been issued with ECCs, which were processed online within 76% compliance with
the prescribed timeframe of twenty (20) / seven (7) days accordingly. Based on records,
most of the issued ECCs are located/to be developed within the Province of Pangasinan
which are about 43% (186 ECCs) of the total number of approved ECCs in CY 2019. Ninety
three (93) ECCs (21.5%) were issued covering various projects/undertakings within the
Province of Ilocos Norte; while seventy eight (78) (18%) and seventy six (76) ECCs (17.6%)
were issued by this Office that are to be located/established within the provinces of La Union
and Ilocos Sur, respectively.
As summarized in Table 1 below, it was revealed that the top three (3) project types
with the highest number of issued ECCs were 1) Resource Extractive Industries - Sand and
Gravel Quarry Projects with One Hundred Eighteen (118) ECCs, Petroleum Industries –
Gasoline Refilling Stations with One Hundred Nine (109) ECCs, and Infrastructure Projects
with Sixty Seven (67) ECCs.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 203
On the other hand, the issued ECCs covering projects/undertakings within the
threshold capacity of Category B-EIS, were processed by this Office by conducting scoping
activities, and substantive review by external EIA Review Committee following the
guidelines under DAO 2003-30: Revised Procedural Manual for PD 1586 and DAO 2017-15
on Public Participation, prior effectivity of the new guidelines set under the EMB MC 2019-
003 for the processing of all Category B Projects. Relative to this, there were three (3) ECCs
issued manually, to wit:
Table 194. ECCs Issued for Category B-EIS Projects
Proponent Name Project Title Project Location ECC Ref. No. Date
Issued
Primewater
Infrastructure Corp.
Water
Treatment
Facility
Guelew, San
Carlos City,
Pangasinan
ECC-R01-1901-
0001 9/1/2019
Local Government
Unit of Suyo, Ilocos
Sur
Suyo
Economic
Zone
Mt. Tapao
Poblacion, Suyo,
Ilocos Sur
ECC-R01-1901-
0002 8/1/2019
Republic Gas
Corporation
LPG
Refilling
Facility
Catablan,
Urdaneta City,
Pangasinan
ECC-R01-1901-
0003 9/1/2019
For the issuance of CNCs, the total number of issued certificates for Category D: Not
Covered projects were One Thousand Seven Hundred Twenty Five (1,725), which were
processed online; while Two Hundred Ninety Eight (298) CNCs were issued for Category
C: Environmental Enhancement and Mitigation Projects that were processed manually. Based
on records, most of the issued CNCs under Category C: Environmental Enhancement and
Mitigation Projects are located within the Province of Pangasinan which are about 66.1%
(197 CNCs) of the total number of manually approved CNCs in CY 2019. Fifty One (51)
CNCs (17.1%) were issued covering various projects/undertakings within the Province of
Ilocos Sur; while Forty Five (45) (15.1%) and Five (5) CNCs (1.7%) were issued by this
Office that are located within the provinces of La Union and Ilocos Norte, respectively.
II. Public/Technical Scoping Activities and EIA Review Committee Meetings For
Category A: ECP under EMB Central Office
In compliance with the guidelines set under DAO 2017-15, public scoping activities
for Category A: ECP shall be facilitated by EMB Regional Office with jurisdiction over the
proposed project location. Further, the concerned EMB Regional Office shall participate as
Resource Person in the conduct of EIA Review Process for all Category A: ECP within their
respective regions, which are being facilitated by EIA Management Division (EIAMD) at the
Central Office.
For CY 2019, the following projects/establishment with threshold capacity under
Category A: ECP which are located/to be located within Region 1, have undergone the
scoping activities, substantive review by EIA Review Committee, and/or public hearing/site
visits:
REGIONAL STATE OF BROWN ENVIRONMENT 2019 204
Table 195. List of Category A: ECP located/to be located within Region 1 that are under EIA Application
/ Review Process of EIAMD, EMB-Central Office
Proponent Name Project Title Project
Location Status
ECC Ref. No. /
Date of Issuance
Isla Verde Mining
and Development
Corp.
Expansion of
Mineral
Processing
Facility
Brgy. Puro
Caoayan,
Ilocos Sur
EIARC Meeting:
May 9, 2019
ECC-CO-1907-0016;
Oct. 4, 2019
National Irrigation
Administration
(NIA)
Proposed
Dumoloc Small
Reservoir
Irrigation Project
Bugallon,
Pangasinan
Public Scoping:
May 22, 2019
Technical
Scoping:
June 19, 2019
-
KEPCO
Philippines
Corporation
2x500MW
Pangasinan Coal
Power Plant
Sual,
Pangasinan
Public Scoping:
Jan. 29, 2019;
Technical
Scoping: Feb. 28,
2019
-
Northern Cement
Corporation
(NCC)
Proposed
Expansion
Labayug,
Sison,
Pangasinan
Public Scoping:
EIARC Meeting:
Sep. 20, 2019;
Public Hearing:
Oct. 17-18, 2019;
-
San Miguel
Northern Cement
Inc.
New Cement
Plant
Labayug,
Sison,
Pangasinan
Public Scoping:
EIARC Meeting:
Sep. 20, 2019;
Public Hearing:
Oct. 17-18, 2019;
-
III. Survey of Projects/establishments implemented without ECC
Surveying of existing and/or operating projects without an ECC were done in
compliance with the requirements of PD 1586 under Section 4 that states:
“No person, partnership or corporation shall undertake or operate any such declared
environmentally critical project or area without first securing an Environmental
Compliance Certificate issued by the President or his duly authorized representative.”
Based on the survey reports consolidated by this Section, there were a total of Eighty
Six (86) projects/establishments found operating or implemented without an approved
ECC. (Refer to Annex D)
Consequently, this Office have issued Notices of Violation (NOVs) to the
respondents, wherein they were directed the same to submit a written explanation as to
why they should not held liable for any violation under PD 1586, and attend a Technical
Conference at EMB Regional Office or at concerned Provincial Environmental
Management Unit (PEMU) at DENR-Provincial Environmental and Natural Resources
(PENR) Offices. Moreover, NOVs were also issued to proponents whose projects were
already implemented prior to filing of ECC application. (Refer to Annexes E and F)
REGIONAL STATE OF BROWN ENVIRONMENT 2019 205
IV. Status of Penalties / Fines Imposition
Resolution of cases under PD 1586 undergoes the due process; and subsequently, the
final decision of this Office regarding such resolutions is issued through Orders.
Reduction of penalties was enforced based on Section 2.5 of the Revised Procedural
Manual of DAO 2003-30. For CY 2019, there were Two Hundred Fifty Seven (257)
issued resolution Orders as recorded by this Office’s Legal Unit.
Based on the records of EMB-1 Cashier, this Office has collected penalties amounting
to about Two Million Seven Hundred Four Thousand Five Hundred Pesos
(₱2,704,500.00) derived from project proponents cited for violations against Section 4 of
PD 1586 (for implementing a project without an ECC), or for non-compliance with ECC
conditions and/or provisions of PD 1586, violating Section 9 of the same Decree. #
REGIONAL STATE OF BROWN ENVIRONMENT 2019 206
HAZARDOUS WASTE MANAGEMENT
EXECUTIVE SUMMARY
Pursuant to the DENR Policy as stipulated in the Republic Act No. 6969, otherwise known as
Toxic Chemicals and Hazardous Waste Control Act of 1990, the Hazardous Waste and Chemical
Management Section (HWCMS) under the Environmental Monitoring and Enforcement Division,
Environmental Management Bureau Region 1 is mandated to monitor and regulate the importation,
manufacture, processing, handling, storage, transportation, sale, distribution, use, and disposal of
chemical substances and mixtures that present unreasonable risk and/or injury to health or the
environment; to prohibit the entry, even in transit, of hazardous and nuclear wastes and their disposal in
the Philippine territorial limits for whatever purpose.
The management of hazardous waste is essentially undertaken by the Chemical and Hazardous
Waste Management Sections of the Clearances and Permitting Division (CPD) and the Environmental
Monitoring and Enforcement Division (EMED). The sections have the primary responsibility of
conducting surveys of firms and health care facilities generating hazardous wastes, issuance of
Hazardous Waste Generators ID, issuance of Permit to Transport (PTT) hazardous wastes, monitoring of
the registered generators on their implementation of hazardous waste management, monitoring registered
transporters and Treatment Storage and Disposal (TSD) facilities. Reports prepared and submitted
include Survey Reports of hazardous waste generators, review of on-line applications and issuance of
hazardous waste registration certificates, monitoring reports of registered HWG, transporters, and TSD
facilities, after which the issuance of Notice of Technical Conference/Notice of Violation, if necessary.
For 2019, EMB Region 1 has accomplished its given targets with very satisfactory ratings. The
Clearances and Permitting Section accomplished the following: ONE HUNDRED EIGHT (108) firms
surveyed against the target of FIFTY (50) firms translating to a 216% accomplishment, THREE
HUNDRED FIFTY THREE (353) applicants were registered manually as hazardous waste generators
against the FIFTY SEVEN (57) firms targeted or a rating of 619%, SIXTY NINE (69) Transport Permits
issued against the target TWENTY TWO (22) permits for issuance registering a 314% accomplishment.
It has evaluated FOUR (4) applications for TSD Facility Registration Certificate and TWO (2)
applications for Hazardous Waste Transporters against THREE (3) and ONE (1) firm targeted for 2019
translating to 133% and 200% accomplishment, respectively.
For the Environmental Monitoring and Enforcement Division activities, a total of THREE
HUNDRED NINE (309) firms comprising of NINETY SIX (96) health care facilities and TWO
HUNDRED THIRTEEN (213) industrial and commercial establishments were monitored against the
total target of TWO HUNDRED THIRTY (230) firms, registering 134% rating. It has monitored THREE
(3) TSD Facilities and TWO (2) Hazardous Waste Transporters against TWO (2) and ONE (1) firms
targeted for 2019 translating to 150% and 200% accomplishment, respectively.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 207
PHYSICAL ACCOMPLISHMENTS CY 2019
Activity Target Total Accomp %
A.03.b4.b Hazardous Waste Management
CLEARANCE & PERMITTING DIVISION
Registration of Hazardous Waste Generators (HWG) 57 126 619%
Firms and Commercial Establishments 47 311 662%
Healthcare Facilities 10 42 420%
Issuance of Transport permits 22 69 314%
Evaluation, screening and recommendations of
applications for TSD Facility registration 3 4 133%
Evaluation, screening and recommendations of
applications for HW Transporter registration 1 2 200%
Survey of potential hazardous wastes generators and
importers of recyclable materials 50 108 216%
MONITORING & ENFORCEMENT DIVISION
Compliance monitoring of HWGs, Transporters,
Importers, and TSD facilities 230 309 134%
Firms and Commercial Establishments 160 213 133%
Healthcare Facilities 70 96 137%
TSD Facility 2 3 150%
HW Transporters 1 2 200%
Updating of HW Database 1 1 100%
Preparation of Annual Regional Hazardous Waste Status
Report 1 1 100%
REGIONAL STATE OF BROWN ENVIRONMENT 2019 208
DATA ANALYSIS
HWG ID Registration Certificates Application
A total of one thousand five hundred eighty-three (1,583) establishments are currently registered as
Hazardous Waste Generators (HWG) in Region 1. 806 have updated HWG IDs, which translates to 51%.
353 applications were evaluated and approved in 2019 (Table 1). Out of the 353 approved certificates, 27
are re-registrations, 23 are amendment, and 303 are new. By province, 201 firms located in Pangasinan
registered, 64 in La Union, 63 in Ilocos Sur, and 25 in Ilocos Norte. Thirty-one (31) applications were
returned to applicants due to incomplete or insufficient documentary requirements during the year and 12
of them were issued HWG IDs upon completion of additional information.
HWG Survey
One hundred eight (108) establishments were surveyed this year (Table 2). Out of the 99 surveyed firms,
21 registered within the year and five (5) with pending application. Sectors surveyed include
QSR/Restaurants, Commercial Buildings, Hotel/Resort, Gas/Service Stations, Livestock (Farms),
Educational institution, healthcare facilities, laboratory, quarry, banking, retail, manufacturing, and bus
terminals.
Permit to Transport (PTT) Application
A total of sixty-nine (69) PTTs were issued to Servo-Treat Phils., Inc., to provide transport and treatment
services to healthcare facilities and industrial firms located in Regions I, III, IV-A, IV-B, NCR, and CAR
(Table 3): 25 PTTs comprising of 17 firms located in R1, 7 PTTs for 4 firms located in CAR, 9 PTTs for
3 firms located in NCR, 4 PTTs for 3 firms located in R3, 21 PTTs for 6 firms located in RIV-A, and 3
PTTs for 3 firms located in RIV-B. Types of wastes transported and treated include B202, C305, D406,
D407, D499, F602, F699, H802, I101, I102, I104, J201, M501, and M503.
Monitoring of Hazardous Waste Generator
A total of ninety-six (96) healthcare facilities (Table 4) and 203 firms (Table 3b) were monitored by
technical personnel. Of the 84 healthcare facilities monitored, 39 are in Pangasinan, 11 in La Union, 16
in Ilocos Sur, and 18 in Ilocos Norte. Three (3) facility were declared CLOSED (in red). On the other
hand, out of the 165 firms monitored, 80 are in Pangasinan, 36 in La Union, 12 in Ilocos Sur, and 37 in
Ilocos Norte. Two (2) Firms are declared CLOSED (in red).
201
64 63
25
0
50
100
150
200
250
Pangasinan La Union Ilocos Sur Ilocos Norte
No. of Registrations per Province
303
23 27
0
100
200
300
400
New Amendment Re-Registration
Types of Registrations
REGIONAL STATE OF BROWN ENVIRONMENT 2019 209
HW Generated (Based on the Quarterly SMRs submitted by HWG)
The largest HW class generated in Region 1 is M501 - Infectious or Pathological Wastes totaling to
1,648.7 MT. This is followed by I102 - Used or Waste Oil (Vegetable) totaling to 1,549.2 MT. Both
increased in quantity from last year probably due to close monitoring of Self-Monitoring Reports and
compliance with submission of SMRs by the firms issued with notices citing non-submission. Other
wastes reportedly generated in the region are: A101, B202, B299, C301, D402, D404, D405, D406,
D407, D499, E502, F601, F604, F699, G703, G704, H802, I101, I104, J201, K301, K303, L404, M503,
M504, and M505, M506. (HW Fact Sheet)
HW Transported and Treated by the TSD Facilities in Region 1
Servo-Treat Philippines, Inc. (STPI) is the only commercial TSD Facility in Region 1. The remaining
TSD Facility registered in Region 1 is Holcim Phils., Inc. but did not conduct treatment of hazardous
wastes within the validity of its permit.
Ilocos Training and Regional Medical Center is a Category A TSD Facility which treat onsite generated
M501 at a minimum capacity of 120 kg/day. Treated wastes are transported by Envirocare Management
Precision, Inc. to a Category C TSD Facility, Metro Clark Waste Management, Inc. The hospital has
contracts with Servo Treat Phils., Inc. for the treatment of medical wastes that their own autoclave can’t
accommodate.
STPI treated a total of 1,390.28 MT of M501, 2,498.84 MT of D499, along with other wastes such as
B299, C305, D406, D407, F602, F699, G704, H802, I101, I102, I104, J201, M503, and M506. Only ten
(10) healthcare facilities availed the services of STPI. Most of the healthcare wastes treated by STPI
came from Regions 3, CAR, and 4A.
HW Transported and Treated by other HW Transporter/TSD Facilities (Based on the Manifest Forms
submitted by HWGs)
Aside from Servo Treat Phils., Inc., healthcare facilities availed the services of Cleanway Environmental
Management Solutions, Inc. and Safewaste, Inc., both DENR-registered transporters and treaters. Other
service providers that entered Region 1 are Unified Hazwaste Expert, Inc. as transporter partnered with
Total Organic Environmental Solutions, Inc. as treater, and Envirocare Management Precision, Inc.
partnered with Eco Safe Hazmat treatment, Inc.. The total M501 quantity transported and treated by
these HW Transporters and TSD facilities is 219.94 MT.
A total of one hundred eighty-three (183) industrial firms and healthcare facilities in Region 1 availed the
services of transporters/treaters outside of the Region, mostly located in Region 3, for the treatment and
disposal of their HWs. HW types being transported and treated are B299, C305, D405, D406, D407,
D499, F602, F603, F699, G704, H802, I101, I102, I104, J201, L404, M501, M502, M503, M504, M506
REGIONAL STATE OF BROWN ENVIRONMENT 2019 210
ISSUES AND CONCERNS
• Since the suspension of Online Hazardous Waste Management System, all application reverted to
manual process. In effect, processing of application of HWG ID received online were delayed as the
documentary requirements increased, as well as, HWGs were not able to check their emails for
deficiencies, if any.
• The monitoring of the manifest system implementation is still not as efficient as it should be. Some
industries still do not secure manifest forms from this Office. TSD Facilities from other regions also
fail to submit manifest forms within 7 days (due to a “and/or” clause in the Permit to Transport
template making it more difficult to track the completion of the hauling and transport activities.
• Monitoring of the hazardous wastes generated thru the Self-Monitoring Report submitted by the
HWGs is still insufficient. Evaluated SMRs include improbable quantities of hazwaste generated.
• HWGs that generate small quantities are requesting to be exempted from compliance with RA 6969.
However, there is no minimum quantity stated in the policy that may allow exemption.
REMARKS AND RECOMMENDATIONS
1. To continue the stringent evaluation of SMRs, as well as Manifest Forms, to be able to collect a
more accurate data for Hazardous Wastes Generated, Transported, and Treated.
2. To increase manpower in the HWCMS, both in the EMED and CPD, to provide technical assistance
to the increasing number of HWGs applying for registration and to assist in the evaluation and
approval of registration, as well as expand the area surveyed and monitored by technical personnel.
3. To determine the universe of hazardous waste generators in the region
REGIONAL STATE OF BROWN ENVIRONMENT 2019 211
OTHER ACTIVITIES
1. Attendance to Hazardous Management Trainings
April 01-04, 2019 Ace Hotel & Suites, Pasig City “1st Capacity Building on Hazardous Waste Management: Chemical Emergency, Contaminated Site Management and Leveling of the Requirement of Permit to Operate for TSD Registration” Participants:
Nestor C. Bambalan Jr.
Judy Ann S. Abella
September 16-20, 2019 Dakak Park and Beach Resort, Dapitan City, Zamboanga del Norte “2nd Capacity Building on Hazardous Waste Management: Hazardous Materials – First Responders Awareness Level Training” Management”
Participants:
Ezekiel B. Salinas
Mercedes J. Acosta
November 26-29, 2019
Park Inn by Radisson, Quezon City
System Requirements Validation of
Online Hazardous Waste Manifest
Tracking System
Participants:
Ezekiel B. Salinas
Kimberly Abila
2. Hazardous Waste Management Orientation to different organizations/sectors
La Marea Academy, 18 January 2019 Universal Advance Medical Diagnostics Laboratory, 20 February 2019 Balaoan District Hospital, 21 February 2019 LGUs in Ilocos Norte with staff from Ecological Solid Waste Management Section,
05 March 2020 LGUs in Ilocos Sur with staff from Ecological Solid Waste Management Section, 06
March 2020 LGUs in Pangasinan with staff from Ecological Solid Waste Management Section,
08 March 2020 LGUs in La Union with staff from Ecological Solid Waste Management Section, 13
March 2020
REGIONAL STATE OF BROWN ENVIRONMENT 2019 212
Provincial Government of Pangasinan, 28 May 2019 MRFC Summit, 12 July 2019 BFAR Regional Office 1, 20 August 2019
3. In-house HWM Training for new personnel
January 23-24, 2019 July 09, 2019
REGIONAL STATE OF BROWN ENVIRONMENT 2019 213
PHOTO DOCUMENTATION
1. HW Transporters
Servo Treat Phils., Inc.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 214
JMB Trading
2. TSD Facilities
Servo Treat Phils., Inc.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 215
Holcim Phils., Inc.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 216
3. Health Care Facilities
Ilocos Prime Lab, Laoag City Ilocos Norte Avitus Dialysis Center, Binalonan,
Pangasinan
Nazareth General Hospital, Dagupan City Cipriana Coquia Dialysis Center,
Dagupan City
REGIONAL STATE OF BROWN ENVIRONMENT 2019 217
The Medical City Pangasinan, Dagupan
City
St. Camillus Maternity Clinic, Manaoag,
Pangasinan
Dagupan Doctors Villaflor Memorial
Hospital, Dagupan City
Candon St. Martin de Porres Hospital,
Candon City, Ilocos Sur
REGIONAL STATE OF BROWN ENVIRONMENT 2019 218
4. Firms
San Roque Power Corp., San Manuel,
Pangasinan
Coca Cola Bottlers Phils., Inc., Calasiao,
Pangasinan
Universal Leaf Phils., Inc., Agoo, La
Union
REGIONAL STATE OF BROWN ENVIRONMENT 2019 219
Petron Corp. – Poro Depot, San Fernando
City, La Union
Wallace Fuel Storage, Inc., San Fernando
City, La Union
REGIONAL STATE OF BROWN ENVIRONMENT 2019 220
TOXIC SUBSTANCES MANAGEMENT
EXECUTIVE SUMMARY
The implementation of Republic Act 6969, also known as the “Toxic Substances and
Hazardous and Nuclear Wastes Control Act of 1990”, has been a quite challenge for the last
three successive decades. Being a comprehensive national policy, the Act requires all
manufacturers and importers of chemical substances, and as well, all generators of hazardous
waste to comply with the regulations and mitigation measures enforced by the Department of
Environment and Natural Resources - Environmental Management Bureau (DENR -EMB). The
Act specifically aims to achieve the following objectives:
a) Keep an inventory of chemicals that are presently being imported, manufactured,
or used, indicating, among others, their existing and possible uses, test data,
names of firms manufacturing or using them, and such other information as may
be considered relevant to the protection of health and the environment;
b) Monitor and regulate the importation, manufacture, processing, handling, storage,
transportation, sale, distribution, use and disposal of chemical substances and
mixtures that present unreasonable risk or injury to health or to the environment
in accordance with national policies and international commitments;
c) Inform and educate the populace regarding the hazards and risks attendant to the
manufacture, handling, storage, transportation, processing, distribution, use and
disposal of toxic chemicals and other substances and mixture; and
d) Prevent the entry, even in transit, as well as the keeping or storage and disposal
of hazardous and nuclear wastes into the country for whatever purpose.
Given that toxic and hazardous substances have been widely used in several industries
and firms, the Republic Act 6969 discusses two aspects of the mandate that include the Toxic
Chemical Substances (Title II) and Hazardous and Nuclear Wastes (Title III), where both have a
separate technical scope and legal purview.
The Environmental Management Bureau Region 1 (EMB-R1) has been consistently
implementing the requirements of the Toxic Chemical Substances (Title II) among its regulated
firms and establishments. Two office divisions, the Enforcement and Monitoring Division
(EMED) and the Clearance and Permitting Division (CPD) serve as the implementing body of
the region for effective enforcement of the technical requirements of the Act. Requirements
cover the implementation of the Philippine Inventory of Chemical and Chemical Substances
(PICCS), Priority Chemical List (PCL), and the Chemical Control Orders (CCOs) for Mercury
(DAO 38-1997), Asbestos (DAO 2000-02), Ozone-depleting Substances (DAO 18-2000),
Polychlorinated Biphenyls (DAO 2004-02), Cyanide (DAO 1997-39), and Lead (DAO 2013-
24).
For the C.Y. 2019, the EMB Region 1 has achieved an overall “Very Satisfactory” rating
in accomplishing its annual target on regulation of toxic substances and chemical management.
To enumerate with, the Clearance and Permitting Division has registered 11 industries under the
Chemical Control Order (1,100%), four chemical importers/manufacturers (100%) were
surveyed, three PCB-owners (150%) were notified for registration, and fifteen PCB
management plans (750%) were approved. On the other hand, the Environmental Monitoring
and Enforcement Division (EMED) has monitored 13 CCO-registered industries (130%), 41
firms were inspected regarding their PCB management plan implementation (128%), one
REGIONAL STATE OF BROWN ENVIRONMENT 2019 221
validated firm for PCB phase-out (100%), and one accomplished Annual Toxic Chemicals
Regional Status Report (100%).
PHYSICAL ACCOMPLISHMENTS CY 2019
Activity Target Total Accomp %
A.03.b4.a Toxic Substances Management
CLEARANCE & PERMITTING DIVISION
Registration of Industries under Chemical Control Order
(CCO) – Asbestos, Lead, PCB 1 11 1100%
Clearance for ODS Chemical Dealers 2 0 0%
Survey of importers, manufacturers (firms),
distributors/dealers, users 4 4 100%
Survey of PCB owners not registered 2 3 150%
Approval of PCB Management Plans 2 15 750%
MONITORING & ENFORCEMENT DIVISION
Chemical Management monitoring of Industries (CCO
Registration and Importation Clearance SQI, PCL and
new chemicals) 10 13 130%
Monitoring of approved PCB Plans 32 41 128%
Validation of Phase-out of PCB as stated in the approved
PCB Management Plans 1 1 100%
Preparation of Annual Toxic Chemicals Regional Status
Report 1 1 100%
REGIONAL STATE OF BROWN ENVIRONMENT 2019 222
ISSUES AND CONCERNS
The Chemical and Hazardous Waste Management personnel of the EMB Region 1 has
encountered some issues and concerns that somewhat have affected the efficient implementation
and enforcement of the RA 6969. The issues and concerns are hereby discussed as follows:
Registrants under the Chemical Control Order for PCB have no longer access to the
Online PCB Inventory System.
As one of the technical requirements of the DAO 2004-01, all PCB owners must reflect
their current and existing PCB-suspected units to the Online PCB Inventory. Likewise,
their PCB management and disposal plan must be updated by the registrants, if
necessary, to include relevant changes such as the proposed schedule of trainings and
implementation time frame of the programs. However, the suspension of the online
inventory system by the EMB Central Office has caused major drawback among the
regulated firms in presenting official PCB inventory. The attempt to restore the online
PCB inventory system shall address this dilemma.
Inaccessibility of available Transport, Storage and Disposal (TSD) services for
decommissioned PCB-contaminated units by the regulated firms.
Despite the availability of the DENR destruction facility and the government subsidy for
PCB disposal through the United Nations Industry Development Organization (UNIDO),
most of the regulated firms and establishments prefer to avail TSD services with
considerable distance near their business address. Moreover, PCB-suspected units and
equipment are being stockpiled by the firms for cluster hauling and treatment, as this is
believed to be more practical than to follow the actual PCB phase-out schedule. Perhaps
the creation of storage/holding facilities at strategic locations may cater the need of the
regulated firms for immediate hauling of their decommissioned PCB units.
CCO Survey of potential distributors/ manufacturers of ODS
The possibility to track all potential distributors/manufacturers of chemical compounds
laden with ozone-depleting substances (service centers, refrigeration repair centers, etc.)
may be hardly met, considering that personnel in the section are few and no official
listing of industries is available. The initiative to survey Highly-Urbanized Cities and
request for list from DTI and/or LGUs within the year will address this concern.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 223
OTHER ACTIVITIES
1. Validation of Asbestos Dismantling
Bangko Sentral ng Pilipinas San Fernando, La Union Branch
2. Validation of PCB Disposal
Bangko Sentral ng Pilipinas San Fernando, La Union Branch
Before After
REGIONAL STATE OF BROWN ENVIRONMENT 2019 224
3. Attendance to Chemical Management Trainings
April 22-26, 2019
One Tagaytay Place Hotel Suite,
Tagaytay City, Cavite
“EMB-Regional Training-Workshop on
on the Updates of Chemical Rules &
Regulations”
Participants:
Maureen S. Malazo
Ezekiel B. Salinas September 3-6, 2019
“Train the Trainers Workshop for the
project: Implementation of PCB
Management Programs for Electric
Cooperatives and Safe E-Wastes
Management”
Participant:
Maureen S. Malazo
October 14-18
Park Inn Radison, Iloilo City
“Workshop on Chemical Rules and
Regulations under RA 6969”
Participants:
Maureen S. Malazo
Nestor C. Bambalan Jr.
December 10-13, 2019
Microtel by Wyndham UP Technohub,
Diliman, QC
“EMB-Regional Training-Workshop on
OPMS for Chemical Permits”
Participants:
Maureen S. Malazo
Judy Ann S. Abella
REGIONAL STATE OF BROWN ENVIRONMENT 2019 225
4. Conduct of PCB sampling and analysis on Electric Cooperatives for the project
“Implementation of PCB Management Programs for Electric Cooperatives and Safe E-
Wastes Management” on March 25-29, 2019 in Region 1 (LUELCO, CENPELCO, and
PANELCO 1)
Pangasinan 1 Electric
Cooperative Main Office, Bani,
Pangasinan
Sampling at PANELCO 1
Central Pangasinan Electric
Cooperative Main Office, San
Carlos City, Pangasinan
Sampling at CENPELCO
REGIONAL STATE OF BROWN ENVIRONMENT 2019 226
5. Conduct of Consultative Meeting with Electric Cooperatives for the project
“Implementation of PCB Management Programs for Electric Cooperatives and Safe E-
Wastes Management” on November 25-29, 2019 in Region 1
Consultative Meeting @ Hotel Luna, Vigan City, Ilocos Sur
ISECO
LUELCO
REGIONAL STATE OF BROWN ENVIRONMENT 2019 227
PANELCO III
CENPELCO
PANELCO I
REGIONAL STATE OF BROWN ENVIRONMENT 2019 228
6. Conduct of Seminar on PCB Management at PANELCO III, Urdaneta City, Pangasinan
on 06 December 2019
REGIONAL STATE OF BROWN ENVIRONMENT 2019 229
PHOTO DOCUMENTATION
Team Sual Corp., Sual, Pangasinan (Mercury)
Nessler’s Reagent used in Ammonia determination
Universal Leaf Phils., Inc., Agoo, La Union (Mercury & Cyanide)
Mercury and Cyanide used in the laboratory for the determination of chlorine and nicotine
content, respectively
REGIONAL STATE OF BROWN ENVIRONMENT 2019 230
NCC, Sison, Pangasinan (Asbestos)
Two (2) buildings with roofing containing asbestos
Servo Treat Phils., Inc., Urdaneta City, Pangasinan (Mercury)
Bulb Eater (Shards are contained in the drum
while the Hg vapor is in the filters)
Ginebra San Miguel, Inc., Sta. Barbara, Pangasinan (Mercury)
Laboratory (not in-use) WWTF (COD vials)
REGIONAL STATE OF BROWN ENVIRONMENT 2019 231
Dagupan City Water District, Dagupan City (Cyanide)
No stocks of COD vials at the time of
monitoring.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 232
ECOLOGICAL SOLID WASTE MANAGEMENT
The Ecological Solid Waste Management Act of 2000 (RA 9003) is an Act providing for an
ecological solid waste management program, creating the necessary institutional mechanisms,
declaring certain prohibited acts.
The salient features of RA 9003 include (a) Creation of the National Solid Waste
Management Commission (NSWMC), National Ecological Center (NEC) and Local Government Unit
(LGU) Solid Waste Management Boards; (b) Creation of multi-purpose Environmental Cooperatives
or Associations in every LGU; (c) Waste segregation, waste reduction and recycling programs; (d)
Construction of Material Recovery Facilities/Systems; (e) Conversion of open dumpsites to sanitary
landfills; (f) Integration of Ecological Waste Management concepts in academic curricula for formal
and non-formal education; and (g) Administrative and enforcement procedures.
The Ecological Solid Waste Management Act of 2000 (RA 9003) provides the legal
framework for the systematic, comprehensive and ecological solid waste management program of the
Philippines, which shall ensure protection of public health and the environment. It emphasizes the
need to create the necessary institutional mechanisms and incentives, and imposes penalties for acts in
violation of any of its provisions.
The Republic Act 9003 specifically mandates all, especially the local government units, to
adopt a systematic, comprehensive and ecological solid waste management program which shall
ensure protection of public health and environment; utilize environmentally sound methods; set
targets and guidelines for solid waste avoidance and reduction; ensure proper segregation, collection,
transport and storage of solid waste; promote national research and development programs for
improved SWM; encourage greater sector participation; retain primary enforcement and responsibility
of SWM with local government units; encourage cooperation and self-regulation among waste
generators; institutionalize public participation; and strengthen the integration of ecological solid
waste management, resource conservation and recovery topics into the academic curricula.
WASTE GENERATION
Waste generation continues to rise with the increase in population, improvement of living
standards, rapid economic growth, and industrialization especially in the urban areas. From 471.3 tons
per day in 2018, the region’s waste generation increased to 501.76 tons in 2019.
114.54 tons/day. The improved submission of Self Compliance and Monitoring Report from
local government units is also a contributory factor to the Region’s increase in the recorded waste
generation.
233
Table 196. Solid Waste Generation Per District of Each Provinces in Region 1
Solid Waste Generation
Province District No. of
Barangays
No. of
LGUs
Waste Generated
(Tons/Day)
Ilocos Norte 1st 284 12 25.36
2nd 274 11 29.31
Total 558 23 54.67
Ilocos Sur 1st 296 11 52.66
2nd 472 23 61.88
Total 768 34 114.54
La Union 1st 299 9 81.52
2nd 276 11 35.73
Total 575 20 117.25
Pangasinan
1st 215 10 27.71
2nd 231 8 38.77
3rd 304 6 44.14
4th 140 5 15.15
5th 222 9 75.98
6th 264 10 13.55
Total 1376 48 215.3
Total for Region 1 3277 125 501.76
Table 196 shows the waste generation of each districts in the four Provinces of the Region.
125 LGUs with a combined total of 3277 Barangays generated 501.76 tons of wastes per day in 2019.
Although the increase in the recorded waste generation may be viewed negatively, it is important to
note that more LGUs has submitted their Self Compliance Monitoring and Assessment Report
(SCMAR) for 2019. The improvement in the submission of the said report is vital in the development
of a database and monitoring of the status of the implementation of RA 9003 in the region.
234
COMPLIANCE OF LOCAL GOVERNMENT UNITS TO RA 9003
For the Calendar Year 2019, the Ecological Solid Waste Management (ESWM) Section of the
Environmental Management Bureau (EMB) Region 1 was tasked to extend Technical Assistance to
LGUs and conduct regular monitoring for them to be able to comply with the different provisions of
the law.
10-YEAR SOLID WASTE MANAGEMENT PLAN
Section 16 of the Republic Act 9003 (Local Government Solid Waste Management
Plans) states that the province, city or municipality, through its local solid waste management
boards, shall prepare its respective 10-year solid waste management plans consistent with the
National Solid Waste Management Framework: Provided, That the waste management plan
shall be for the re – use, recycling and composting of wastes generated in their respective
jurisdictions: Provided further, That the solid waste management plan of the LGU shall
ensure the efficient management of solid waste generated within its jurisdiction.
All local government solid waste management plans shall be subjected to the
approval of the Commission. The plan shall be consistent with the national framework and in
accordance with the provisions of this Act and of the policies set by the Commission.
From Calendar Year 2014 up to Calendar Year 2017, seven (7) plans were approved
by the National Solid Waste Management Commission (NSWMC). In 2019, eighteen (18)
plans were approved by the Commission, summing up a total of thirty-eight (38) approved
city/municipal plans and two (2) provincial plan from CY 2014 to CY 2019. All 125 LGUs
and 4 Provinces has submitted their respective 10-Year Solid Waste Management Plan that is
either under evaluation or for revision if not yet approved by the NSWMC.
Table 197 shows the number of approved 10-Year Solid Waste Management Plan
(10-Year SWMP) in Region 1. All twenty (20) LGUs in the province of La Union have their
10-Year SWMP approved by the National Solid Waste Management Commission (NSWMC).
Ilocos Norte have 5 LGUs with approved Plan while Ilocos Sur have 6 LGUs with approved
Plan. The Province of Pangasinan have eight (8) approved 10-Year SWMP from five out of
its six districts. The Provinces of La Union and Pangasinan were also able to have their
Provincial 10-Year SWMP approved by the (NSWMC) in 2019. A total of 40 plans were
approved with 18 plans approved in 2019.
235
Table 197 Status of 10-Year Solid Waste Management Plan Per District of Each Provinces in
Region 1
Status of 10-Year Solid Waste Management Plan (10-Year SWMP)
Province District No. of Approved Plans
Ilocos Norte 1st 3
2nd 2
Provincial 10-Year SWMP 0
Total 5
Ilocos Sur 1st 2
2nd 4
Provincial 10-Year SWMP 0
Total 6
La Union 1st 9
2nd 11
Provincial 10-Year SWMP 1
Total 21
Pangasinan
1st 1
2nd 0
3rd 1
4th 1
5th 2
6th 2
Provincial 10-Year SWMP 1
Total 8
Total for Region 1 40
236
CLOSURE OF OPEN AND CONTROLLED DUMPSITES
RA 9003 requires LGUs to close their existing open dumpsites by year 2006 and to
establish controlled disposal facilities or SLFs. As of 2019, there are still two (2) open
dumpsites (OD); twenty-nine (29) controlled dumpsite (CD); twenty-nine (29) sanitary
landfills (SLF); sixty-four (64) closed dumpsites of which forty – one (41) are under
rehabilitation and two (2) LGUs have no dumpsite facility.
Table 198 breaks down the number and type of disposal facilities found per district in
each of the provinces within the Region. The Province of La Union has the most number of
SLFs with twelve (12) established engineered SLFs out of 20 LGUs. Ilocos Norte has a total
of seven (7) engineered SLFs out of 23 LGUs while Ilocos Sur was able to establish six (6)
SLFs out of 34 LGUs. Pangasinan has the lowest number of SLFs with 4 out of 48 LGUs. Out
of the four (4) provinces, Pangasinan is the only province with open dumpsite amounting into
two (2) open dump facility.
Table 198 Number of Disposal Facilities in each of the Provinces in the Region
Number of Disposal Facility
Province District Open
Dumpsite
Controlled
Dumpsite
Sanitary
Landfill
Closed
Dumpsite Dumpsite
Ilocos
Norte 1st 0 3 3 5 1
2nd 0 2 4 5 0
Total 0 5 7 10 1
Ilocos Sur 1st 0 6 1 4 0
2nd 0 5 5 13 0
Total 0 11 6 17 0
La Union 1st 0 1 8 0 0
2nd 0 0 4 7 0
Total 0 1 12 7 0
Pangasinan 1st 0 5 3 2 0
2nd 0 1 0 8 0
3rd 1 0 0 5 0
4th 1 4 0 0 0
5th 0 1 1 6 1
6th 0 1 0 9 0
Total 2 12 4 30 1
Total for Region 1 2 29 29 64 2
237
A total of 127 LGUs from the 4 Provinces of Region 1 were visited by the composite
monitoring team from May – October 2019. Despite best efforts however, some of the areas were
inaccessible at the time of monitoring due to inclement weather conditions or the access roads were
deemed unfit to be travelled or traversed due to existing hazards. The objective of the monitoring is to
assess the status of LGU compliance on the closure and rehabilitation of open and controlled dump
facilities in Region 1.
Establishment of Materials recovery facility (MRF)
Section 32 of the RA 9003 (Establishment of LGU Materials Recovery Facility)
states that There shall be established Materials Recovery Facility (MRF) in every barangay or
cluster of barangays. The MRF shall receive mixed waste for final sorting, segregation,
composting, and recycling. The resulting residual wastes shall be transferred to a long – term
storage or disposal facility or sanitary landfill.
Table 199 shows that as of CY 2019, thirty-eight (36) local government units (LGUs)
were provided with financial assistance for the construction and establishment of
central/municipal materials recovery facility (MRF) and purchase of bio shredder. A total of
21 Million Pesos (Php 21,000,000.00) for financial support was awarded to 36 LGUs in the
Region. Four (4) LGUs from Ilocos Norte received a total of 4.7 million pesos, seven (7)
LGUs each were awarded a total of 3 million pesos and 3.8 million pesos in Ilocos Sur and La
Union respectively. Lastly, eighteen (18) LGUs were awarded a total of 9 million pesos in
Pangasinan.
238
Table 199. Financial Assistance Downloaded to the Different Provinces in Region 1 for the
Establishment of Central MRFs and Purchase of Solid Waste Management Equipment
No. Province LGU Amount Downloaded (Php)
1 Bangui 3,200,000.00
2 Carasi 500,000.00
3 Dumalneg 500,000.00
4 Piddig 500,000.00
Total 4,700,000.00
5 San Ildefonso 500,000.00
6 Sta. Catalina 500,000.00
7 Gregorio del Pilar 500,000.00
8 San Emilio 500,000.00
9 Sigay 500,000.00
10 Sugpon 500,000.00
11 Suyo 500,000.00
Total 3,000,000.00
12 Bacnotan 500,000.00
13 Bangar 500,000.00
14 Sudipen 500,000.00
15 San Juan 800,000.00
16 Bagulin 500,000.00
17 Caba 500,000.00
18 Tubao 500,000.00
Total 3,800,000.00
19 Alaminos City 500,000.00
20 Bolinao 500,000.00
21 Mabini 500,000.00
22 Binmaley 500,000.00
23 Bugallon 500,000.00
24 Urbiztondo 500,000.00
25 Sta. Barbara 500,000.00
26 Manaoag 500,000.00
27 San Fabian 500,000.00
28 San Jacinto 500,000.00
29 Alcala 500,000.00
30 Bautista 500,000.00
31 Laoac 500,000.00
32 Pozorrubio 500,000.00
33 Sison 500,000.00
34 Sto. Tomas 500,000.00
35 Villasis 500,000.00
36 Rosales 500,000.00
Total 9,000,000.00
21,000,000.00
Ilocos Norte
Ilocos Sur
La Union
Pangasinan
Grand Total
239
Table 200. Summary of 2019 Database on the Compliance of Region 1
Summary: No. of
LGUs
DISPOSAL FACILITY SWM
Plan
OD CDF SLF Closed No Dumpsite Approved
ILOCOS NORTE 1
1st District 12 0 2 4 6 1 3
2nd District 11 0 1 7 3 0 2
TOTAL 23 0 3 7 9 1 5
ILOCOS SUR
1st District 11 0 6 1 4 0 2
2nd District 23 0 5 5 13 0 4
TOTAL 34 0 11 6 17 0 6
LA UNION 1
1st District 9 0 1 8 0 0 9
2nd District 11 0 0 4 7 0 11
TOTAL 20 0 1 12 7 0 20
PANGASINAN
1st District 10 0 5 3 2 0 1
2nd District 8 0 1 0 8 0 0
3rd District 6 1 0 0 5 0 1
4th District 5 1 4 0 0 0 2
5th District 9 0 1 1 6 1 2
6th District 10 0 1 0 9 0 1
TOTAL 48 2 12 4 30 1 7
Total for
Region 1
125 2 27 29 63 2 40
240
SUPPORT ACTIVITIES
Aside from implementation of the salient provisions of RA 9003, the ESWM section of EMB-
R1 spearheaded and provided support to other activities and programs that would strengthen and
upkeep the enactment of effective and sound solid waste management throughout the region.
IMPLEMENTATION OF SOLID WASTE ENFORCEMENT AND EDUCATION
PROGRAM (SWEEP)
The coverage of the Solid Waste Enforcement and Education Program (SWEEP) for
Calendar Year 2019 was expanded to cover all local government units nationwide. It aims to
strengthen institutional arrangements of the Department of Environment and Natural
Resources (DENR) and Environmental Management Bureau (EMB) field offices for
improved monitoring and enforcement of environmental laws through the establishment of
strong support systems to include the strengthening of partnership programs with local
government units and other stakeholders and capacitating personnel, among others.
The implementation of the SWEEP is consistent with the role of the DENR to
provide technical and other capability building assistance and support to the Local
Government Units (LGUs), in the development and implementation of local solid waste
management plans and programs (Section 8e, RA 9003) and to exercise visitorial and
enforcement powers to ensure strict compliance with the Act (Section 8g, RA 9003). An
orientation and enhancement program was conducted for newly hired and longstanding
EnMOs for each of the provinces in Region 1 in 2019. The topics in the program includes
continuation of the Basura Patrol Program, and salient features of R.A. 9003 and other
environmental laws enforced by the Environmental Management Bureau (EMB).
The major target of the SWEEP in terms of the education function of EnMOs is the
establishment/maintenance of Model Barangays in their respective areas. All of the selected
Model Barangays were nominated for the Regional Search for Model Barangays which ran
from September to November 2019. These Barangay nominees has undergone a strict on site
and paper review from the validators to ensure that best practices in proper solid waste
management is being implemented and observed.
As such, Table 201 shows the list of winners for three categories based on the income
class of the LGUs. Under Category C (4th
-5th Class Municipalities), the overall champion is
Brgy. Caparispisan, Pagudpud, Ilocos Norte. Under Category B (1st-3
rd Class Municipalities),
Brgy. Sta. Barbara, Agoo, La Union is the champion and under Class A for Cities, Brgy. 30
Sta. Maria, Laoag City was awarded the overall championship. The champions were awarded
a plaque and Php 200,000 cash prize. Minor prizes were also awarded for Barangays with
Best MRF, Best implementation of waste segregation and best implementation of segregated
collection for each category. The consolation prizes include plaque and Php 50,000 cash
prize. The awarding was held on December 13, 2019 at Casa De Castelle Hotel and Spa, San
Juan, La Union.
REGIONAL STATE OF BROWN ENVIRONMENT 2019 241
Table 201. Winners of the 2019 Regional Search for Model Barangays
Category Award Barangay Barangay Captain
CHAMPION Barangay 30-STA. MARIA, LAOAG CITY HON. GLENFORD T. PAGUIRIGAN
BEST MRF Barangay San Andres, Candon City, Ilocos Sur HON. DALILA L. BELLOZA
Best Implementer for Segregation at Source Barangay Ayusan Norte, Vigan City, Ilocos Sur HON. IGNACIO P. TADEO
Best Implementer for Segregated Collection Barangay Polo, Alaminos City, Pangasinan HON. AVELINO CORTEZ
CHAMPION Barangay Sta. Barbara, Agoo, La Union HON. ERWINA C. ERIGUEL
BEST MRF Barangay San Jose, San Nicolas, Ilocos Norte HON. GIOVANI A. TAYLAN
Best Implementer for Segregation at Source Barangay Caranglaan, Alcala, Pangasinan HON. RODOLFO V. URLANDA
Best Implementer for Segregated Collection Barangay Suksukit, Sto. Domingo Ilocos Sur HON. EDUARDO TACAL
CHAMPION Barangay Caparispisan, Pagudpud Ilocos Norte HON. LOVELLA S. GARVIDA
BEST MRF Barangay San Macario, Natividad, Pangasinan HON. BONIFACIO BAŃAGA
Best Implementer for Segregation at Source Barangay Poblacion, Sudipen, La Union HON. TERESITA L. CABACCANG
Best Implementer for Segregated Collection Barangay Poblacion, Burgos, Ilocos Norte HON. JOEGIE B. JIMENEZ
A (City)
B (1st-2nd Class
Municipalities)
C (4th-5th Class
Municipalities)
REGIONAL STATE OF BROWN ENVIRONMENT 2019 242
COACHING OF LGUS FOR THE COMPLETION OF THEIR 10-YEAR SOLID
WASTE MANAGEMENT PLAN
Section 16 of the RA 9003 mandates that the province, city or municipality, through
its local solid waste management boards, shall prepare its respective 10-year solid waste
management plans consistent with the National Solid Waste Management framework,
provided that the plan shall be for re-use, recycling and composting of waste generated in
their respective jurisdictions. The plan shall contain all components provided in Section 17 of
the Act and a timetable for the implementation of the solid waste management program and
that shall be reviewed and updated every year by the provincial, city or municipal solid waste
management board.
In support to this mandate, the ESWM Section of EMB-Region 1 held a series of
coaching for LGUs to assist in the completion of their respective 10-Year Solid Waste
Management Plan. A total of 54 LGUs from the four provinces of Region 1 were coached in
2019. The LGUs were guided on the completion of Form 4 and their respective waste flow
and more importantly the refinement and updating of their respective waste characterization
and analysis (WACS). A mock deliberation was also conducted in each of the coaching
events in order to prepare the LGUs in their defense with the NSWMC. Best practices were
also shared by LGUs with approved plans.
SOLID WASTE MANAGEMENT SUMMIT
The Environmental Management Bureau (EMB) – Region I of the Department of
Environment and Natural Resources held the 4th Region I Ecological Solid Waste
Management Summit with the theme: “Beat Air Pollution: Managing Solid Waste Towards
a Pollution-Free Environment” was attended by about 250 participants from local
government units across the Ilocos Region, National Government Agencies, Academe and
other stakeholders on June 25, 2019 at the Marand Resort, Bauang, La Union.
The event became a venue for sharing of best practices on solid waste management
among the LGUs. Recycled products were also exhibited in the event which includes bags,
pillows, ornamental vases, among others. Various alternative technologies on solid waste
management were also introduced to the attendees by EnP Grace P. Sapuay, President of the
Solid Waste Management Association of the Philippines, Dr. Melina A. Palencia of Envirog
Natural Producers Manufacturing, and lecturers from Suki Trading Corporation, Indopower
International, and Kata Traders.
The summit was attended by no less than EMB Undersecretary for Solid Waste
Management and LGU Concerns Benny D. Antiporda whom underscored in his keynote
address the importance of institutionalizing segregation at source in every household to
significantly reduce disposal in sanitary landfills.
BAYAN KO, LINIS KO NATIONAL CLEAN UP
The Bayan Ko, Linis Ko National Clean Up was launched in 2016 as a nationwide
clean-up program. It aims to complement and expand existing cleanup programs such as the
former Basura Patrol Program, now called the Solid Waste Education and Enforcement
Program (SWEEP) and the International Coastal Cleanup (ICC). With the success of the
2016, 2017 and 2018 Clean-up, the Environmental Management Bureau was requested by the
Biodiversity Management Bureau to also assist in the National Mountain Clean-up Day and
the International Coastal Clean-Up on September, 2019.
243
In line with the objectives of the Philippine Development Plan 2017 – 2022, the
program aims to contribute in Ensuring Ecological Integrity, Clean and Healthy Environment,
specifically to “Promote the practice of 3Rs and proper waste management”. To support the
activity, a one-day Organizational Meeting for the Implementation of Bayan Ko, Linis Ko
Clean-up Program with the theme “Battle for Litter-Free Seas” was organized on September
13, 2019 at Marand Resort and Spa, Bauang, La Union.
The event also served as the venue for the awarding of bank checks worth Php
25,000.00 to the recipients of the National Eco-Savers Program (NEP). These are the schools
selected, under strict criteria based on their implementation of solid waste management
programs. The Php 25,000 grant will serve as financial support to maintain and enhance their
existing and planned solid waste management programs. Below are pictures during the
awarding.
244 REGIONAL STATE OF BROWN ENVIRONMENT 2019
ENVIRONMENTAL ACTIVITIES
DENR-EMB Region I kicks off environmental campus tour 2019
Aimed to raise environmental awareness among students and promote sustainable and
eco-friendly practices in schools, the environmental campus tour of the Environmental
Management Bureau – Region I (EMB-I) of the Department of Environment and Natural
Resources (DENR) kicked off on January 18, 2019 at the La Marea Academy in Dagupan
City.
Over a hundred grade four to junior high students attentively listened to lectures on
different environmental laws. Engr. Remedios A. Jimenez, Chief of the Ambient Monitoring
and Technical Services Section, discussed the salient features of Republic Act 8749 or the
Clean Air Act of 1999 and Republic Act 9275 or the Clean Water Act of 2004, as well as the
clean air and clean water programs of the EMB-DENR. Engr. Maureen S. Malazo, Chief of
the Toxic and Hazardous Waste Management Section, presented Republic Act 6969 or Toxic
Substances and Hazardous and Nuclear Wastes Control Act and the adverse effects of toxic
substances in human health.
Ms. Ma. Isabel O. Perez, Chief of the Environmental Impact Assessment Section,
gave an overview of the Presidential Decree 1586 or the Environmental Impact Statement
System and stressed the importance of keeping the balance between the environment and the
socio-economic development of the country. Mr. Maynard Cara, Information Officer II,
talked about climate change and how the students can help lower their carbon footprint in
their own way. He likewise invited the faculty members and the students to join the 2019
National Search for Sustainable and Eco-Friendly Schools. Mr. Philip Matthew Licop,
Environmental Monitoring Officer, shared with the students how they should ecologically
manage their solid waste. Ms. Mariel S. Aquino, Communication Development Officer II of
the DENR Regional Public Affairs Office, discussed the role of the youth in protecting the
environment.
245 REGIONAL STATE OF BROWN ENVIRONMENT 2019
Posters and flyers on solid waste management, air and water conservation, and
climate change were given to La Marea Academy Principal Rochelle SD. Novales and the
student council officers.
DENR-EMB Region I through the Environmental Education and Information Unit
will visit schools and universities in the region to conduct environmental lectures and
promote the 2019 National Search for Sustainable and Eco-Friendly Schools.
DENR-EMB Region I and LGU San Juan, La Union
spearhead clean-up along San Juan coast
In celebration of World Water Day which highlights the importance of sustainable
management of water resources and in line with the top environmental priorities of the
Department of Environment and Natural Resources (DENR) Secretary Roy A. Cimatu which
include “Clean Water” and “Solid Waste Management,” the Environmental Management
Bureau – Region I (EMB-I) of the DENR in partnership with the local government unit of
San Juan, La Union spearheaded an orchestrated clean-up activity on March 15, 2019 along
the coast of San Juan, La Union
Over 500 volunteers from different barangays in San Juan, La Union, DENR-Region
I, EMB-I, PENRO La Union and Department of Education – Region I, and some resort
owners took part in the clean-up drive from the coast of Barangay Urbiztondo all the way to
Barangay Taboc.
246 REGIONAL STATE OF BROWN ENVIRONMENT 2019
San Juan, La Union Mayor Arturo P. Valdriz warmly welcomed the volunteers and
expressed gratitude to DENR-EMB Region I for initiating the clean-up activity. EMB-I
Regional Director Mara Dorica Naz-Hipe formally opened the clean-up drive and encouraged
the residents and volunteers to protect the beautiful San Juan beach which is now one of the
premier surfing and tourist destinations in the country. She underscored the importance of
ecologically managing solid wastes to prevent water pollution and adverse impacts on marine
life.
Prior to the clean-up activity, the participants gathered at the San Juan Gymnasium
where they were oriented by San Juan MENRO, Riza Joy Abat, to pick up plastic wastes and
residual wastes or rubbish not able to be recycled, re-used or composted. The volunteers
picked up residuals which were mostly small plastic wrappers and cigarette butts. One
medium-sized dump truck was filled with collected residuals.
This 2019, DENR-EMB-I will hold orchestrated clean-up activities along rivers and
the coastal beaches, especially in popular tourist destinations in the Ilocos Region to intensify
its information, education and communication campaigns on clean water and solid waste
management.
DENR-EMB Region 1 and LGU Dagupan City spearhead clean-
up along Tondaligan coast
247 REGIONAL STATE OF BROWN ENVIRONMENT 2019
About 500 volunteers took part in the orchestrated clean-up activity along the coast of
Barangay, Tondaligan in Dagupan City on April 26, 2019. The Environmental Management
Bureau – Region I (EMB-I) of the Department of Environment and Natural Resources
(DENR) organized the clean-up drive in partnership with the City Government of Dagupan to
intensify public awareness about properly managing solid wastes in line with the celebration
of Earth Day and Earth Month.
EMB-I Regional Director Maria Dorica Naz-Hipe expressed gratitude to the
volunteers from PENRO Pangasinan, CENRO Dagupan, LGU Dagupan City, Barangay
LGUs of Dagupan, Bureau of Fire Protection, Philippine National Police – Maritime Police,
Department of Education – Dagupan City Division, Centrum Fuels, Jollibee , McDonald’s,
cottage owners, residents and other stakeholders for joining the environmental event. She
encouraged the public to support the DENR and LGU Dagupan City in properly managing
solid wastes by segregating garbage at source, religiously practicing the 3 Rs – reduce, reuse
and recycle, and composting their biodegradable wastes which can be used as soil
conditioners. “The Tondaligan Beach is one of the most popular and beautiful bathing
beaches here in Region I, so we should work together to protect it,” added Director Hipe.
The expected 2-hour clean-up activity was reduced to 1 hour due to the huge turn out
of volunteers. A total of 96 trash bags and sacks which were filled with residual wastes were
collected. Mostly plastic food wrappers, cigarette butts, glass bottles were collected. EMB-I
holds orchestrated clean-up drives in popular bathing beaches and rivers in the Ilocos Region
in accordance with the top environmental priorities of DENR Secretary Roy A. Cimatu,
which include “Clean Water” and “Solid Waste Management.”
248 REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-EMB Region I conducts ZumKalikasan: Hataw
para sa Malinis na Hangin
The Environmental Management Bureau (EMB) – Region I of the Department of
Environment and Natural Resources (DENR) organized and conducted a Zumba fitness
activity dubbed ZumKalikasan: Hataw para sa Malinis na Hangin on June 4, 2019 at the
Town Plaza, City of San Fernando, La Union, which aimed to promote a physical fitness
activity outdoors and raise public awareness on the need for clean air, air pollution prevention
and environmental protection.
Over 400 participants from the City Government of San Fernando, La Union; Region
I Offices of the DENR, Philippine National Police; National Police Commission; Department
of Interior and Local Government; Department of Health; Department of Foreign Affairs;
Land Transportation Office; Land Transportation Franchising and Regulatory Board;
Department of Science and Technology; Department of Social Welfare and Development;
Department of Education; Bureau of Fire Protection; Philippine Information Agency; and
Department of Labor and Employment; Provincial Environment and Natural Resources
Office-La Union led by PENRO Maximo F. Soriano, Jr.; Ilocos Training and Regional
Medical Center; Soiltech Agricultural Products; Jollibee Foods Corporation; La Union
249 REGIONAL STATE OF BROWN ENVIRONMENT 2019
Fitness Club, Teta’s Gym and Zumba contingents from Barangays Poblacion, Sagayad,
Tanqui, and Poro, took part in the said environmental fitness event.
EMB Region I Director Maria Dorica Naz-Hipe said the ZumKalikasan is one of the
activities of the DENR-Region I in line with the celebration of the World Environment Day
(June 5) and Philippine Environment Month with the global theme “Beat Air Pollution.”
“May this first ZumKalikasan further ignite the public’s concern not only for a clean and
healthy air quality, but also for the environment as a whole,” added RD Hipe.
DENR-I Assistant Regional Director for Management Services Leduina S. Co, in her
inspirational message expressed gratitude to the participants and urged them to take part in
the “Beat Air Pollution” campaign by constantly doing things that would reduce air pollution
such as planting trees, carpooling, taking public transportation, biking, saving electricity, and
not burning garbage, among others.
“Jollibee” and “Yum” mascots surprised the participants with their energetic and fun
opening dance number with the EMB-Region I”ZumBuddies”. Gift packs were given to 24
raffle winners, and the Zumba Kings and Queens from DENR-I, PNP-I, DSWD-I, and DOH-
I who showcased their best groove and stamina were also recognized.
The World Environment Day is celebrated every June 5th
and is the United Nation's
principal vehicle for encouraging awareness and action for the protection of the environment.
The month of June was declared as the Philippine Environment Month by virtue of
Presidential Proclamation No. 237 signed in 1998 by then President Corazon C. Aquino.
DENR-EMB-I holds 4th
Region I Ecological Solid Waste
Management Summit
250 REGIONAL STATE OF BROWN ENVIRONMENT 2019
The Environmental Management Bureau (EMB) – Region I of the Department of
Environment and Natural Resources held the 4th
Region I Ecological Solid Waste
Management Summit attended by about 250 participants from local government units across
the Ilocos Region, National Government Agencies, Academe and other stakeholders on June
25, 2019 at the Marand Resort, Bauang, La Union.
EMB-Region I Director Maria Dorica Naz-Hipe expressed gratitude to all the
participants who supported the said environmental event and urged all 125 local government
units (LGUs) in Region I to intensify their implementation of Republic Act 9003 or the
Ecological Solid Waste Management Act of 2000. She assured them that the DENR-EMB
Region I will continue to provide technical assistance in their solid waste management
programs and activities.
Engr. Eligio Ildefonso, Executive Assistant of EMB Director Metodio M. Turbella,
said the 4th
Region I Ecological Solid Waste Management Summit is a great venue for the
LGUs to learn the best available technologies and best available practices on ecological solid
waste management that they can adopt in their respective municipalities and cities.
EMB Undersecretary for Solid Waste Management and LGU Concerns Benny D.
Antiporda underscored in his keynote address the importance of institutionalizing segregation
at source in every household to significantly reduce disposal in sanitary landfills. “Maraming
nagsasabi na salot daw po ang plastic, pero ang salot po ay hindi plastic kundi tayong mga
tao. The DENR is not simply cleaning the Manila Bay or the environment. We are cleaning
the culture of the Filipino people,” stressed Usec Antiporda. He likewise appealed to the local
chief executives for them to set aside politics and focus on the welfare of the environment.
Usec. Antiporda encouraged the LGUs to come up with alternative ways to ecologically
manage solid wastes.
DENR-I Regional Executive Director Carlito M. Tuballa stressed that the ecological
management of solid wastes is everyone’s obligation and should be taken seriously. RED
Tuballa pointed out the importance of collaborative effort among the DENR, LGUs and the
communities in the successful implementation of the Ecological Solid Waste Management
Act of 2000. PENRO La Union Maximo F. Soriano, Jr. and Mr. Justito Orros III from the
Office of the Provincial Governor of La Union also graced the event.
251 REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-EMB Region I awarded plaques of recognition to 24 LGUs whose Ten-Year
Solid Waste Management Plans were already approved by the National Solid Waste
Management Commission, namely the Provincial Government of La Union; City of San
Fernando and the municipalities of Bacnotan, Sudipen, Luna, Agoo, Naguilian, Caba and
Rosario in the Province of La Union; Alaminos City and the municipalities of Binalonan,
Mangaldan, Sta. Maria, Malasiqui and Alcala in the Province of Pangasinan; Candon City,
Vigan City, and the municipalities of Sta. Cruz and Sto. Domingo in the Province of Ilocos
Sur; and the municipalities of Paoay, Bangui, Burgos, San Nicolas and Bacarra in the
Province of Ilocos Norte.
The LGUs shared their best practices on solid waste management such as
vermicomposting, upcycling food wrappers and assorted product packaging into bags and
various decorations, eco-bricking or filling up plastic bottles with plastic materials, and
making eco-pavement blocks with cement and shredded pastic wrappers, among others,
which can be replicated by other municipalities and cities. The LGUs also showcased their
recycled products at exhibit booths set up in the lobby of Marand Resort.
Various alternative technologies on solid waste management were also introduced to
the attendees by EnP Grace P. Sapuay, President of the Solid Waste Management Association
of the Philippines, Dr. Melina A. Palencia of Envirog Natural Producers Manufacturing, and
lecturers from Suki Trading Corporation, Indopower International, and Kata Traders.
Technical guidebook on solid waste disposal operation and management, handbook
on the implementing rules and regulations of Republic Act 9003, and other information,
education and communication materials on solid waste management were distributed to all
the participants.
DENR-EMB Region I convenes REC and RIACEE
members for joint meeting; “Green Fair” slated for
October
252 REGIONAL STATE OF BROWN ENVIRONMENT 2019
The Environmental Management Bureau – Region I of the Department of
Environment and Natural Resources convened the members of the Regional Ecology Center
(REC) and Regional Interagency Committee on Environmental Education (RIACEE) for a
joint meeting on July 17, 2019 at Max’s Restaurant, City of San Fernando, La Union.
EMB-Region I Director Maria Dorica Naz-Hipe presided over the said meeting which
was attended by representatives from the Regional Offices of Commission on Higher
Education, Department of Science and Technology, Department of Trade and Industry,
Department of Public Works and Highways, Department of Social Welfare and
Development, Philippine Information Agency, Philippine National Police, City Government
of San Fernando, La Union, Don Mariano Marcos Memorial State University – North La
Union Campus, Philippine Association of Tertiary Level Educational Institutions in
Environmental Protection and Management, and Lupon ng mga Indibidwal na Nangangalaga
sa Kalikasan.
To promote environmental awareness and proper management of solid waste, The
REC and RIACEE members conceptualized an information, education and communication
activity dubbed “Green Fair” to be held in October at the municipality of San Fabian,
Pangasinan. The “Green Fair” will showcase eco-friendly products through a trade fair and
lectures on ecological solid waste management, climate change and disaster risk reduction.
Ms. Aloha May Renion, Environmental Monitoring Officer of the Ecological Solid
Waste Management Section, presented the Status of Compliance of LGUs with Republic Act
9003 or the Ecological Solid Waste Management of 2000. She also conducted an orientation
on the “Bayan Ko, Linis Ko” National Clean-up Month which will happen in September. RD
Hipe urged the REC and RIACEE members to take part in the “Bayan Ko, Linis Ko” to
maintain cleanliness of the environment and preserve the beautiful beaches in the Region.
253 REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-EMB Region I and LGU San Fabian, Pangasinan spearhead orchestrated clean-up along San Fabian coast
254 REGIONAL STATE OF BROWN ENVIRONMENT 2019
The Environmental Management Bureau – Region I (EMB-I) of the Department
of Environment and Natural Resources (DENR) in partnership with the local government
unit of San Fabian, Pangasinan spearheaded on September 25, 2019 an orchestrated clean-up
activity along the coastal area of San Fabian, Pangasinan in observance of the International
Coastal Clean-up Day, National Clean-up Month, and World Environmental Health Day.
Over a thousand volunteers from DENR-Region I, Philippine National Police,
PNP Maritime Group Philippine Coast Guard, Bureau of Fire Protection, Academe, resort
owners and employees, Pangkat Guardians, Pantawid Pamilyang Pilipino Program
beneficiaries, residents and other stakeholders took part in the clean-up drive.
According to EMB-I Regional Director Maria Dorica Naz-Hipe, the said clean-
up aims to raise awareness about the importance of properly managing solid wastes and
keeping the waterbodies clean to avoid diseases caused by polluted environment. In a short
program prior to the clean-up, Director Hipe expressed gratitude to the volunteers and
encouraged them to institutionalize regular clean-up activities from ridge to reef.
Atty. Arlyn Katherine C. Buduhan, OIC-CENRO of Central Pangasinan, pointed
out that every participant will not just simply pick up trash, but will significantly contribute
in the protection of the marine ecosystem. She likewise appealed to the public to always
keep the San Fabian coastal area clean.
San Fabian Municipal Executive Secretary Antonio Supremido, Jr. gave a pre-
clean-up briefing and reminded the volunteers to segregate recyclable wastes from residuals
or non-recyclable wastes. Board Member Liberato Z. Villegas also joined the said
environmental activity and provided three garbage trucks which collected the sacks of
residuals or non-recyclable wastes. Most of the residual wastes picked up by the volunteers
were small plastic wrappers, styrofoam, and cigarette butts. The sacks of recyclable wastes
were brought to the materials recovery facility which can be sold to junk shops.
Proclamation No. 244, series of 1993 declares the month of September as
National Clean-Up Month and the 17th to the 23rd of September of each year as the World
Clean and Green Week. Presidential Proclamation No. 470, series of 2003, declares the third
Sunday of September of each year as the International Coastal Clean-Up Day in observance
of the Global Coastal Clean-up celebrations. President Rodrigo Duterte signed Proclamation
595 on October 1, 2018 declaring September 26 of every year as “World Environmental
Health Day” in the Philippines.
255 REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-EMB Region I, REC, RIACEE hold Green
Caravan in San Fabian, Pangasinan
256 REGIONAL STATE OF BROWN ENVIRONMENT 2019
The Environmental Management Bureau – Region I, Regional Ecology Center (REC),
and Regional Interagency Committee on Environmental Education (RIACEE) in partnership
with the Municipality of San Fabian, Pangasinan conducted an environmental awareness
drive dubbed “Green Caravan” for barangay officials of the 34 barangays in the said
municipality and the Federation of Senior Citizens Association of the Philippines – San
Fabian Chapter on October 15, 2019 at the PTA Beach Resort, San Fabian, Pangasinan.
The Green Caravan is the information, education and communication activity of the
REC and RIACEE members as agreed upon during their joint meeting on July 17, 2019. It
aims to promote environmental awareness through environmental education pursuant to
Republic Act 9512 or the National Environmental Awareness and Education Act of 2008 and
to facilitate training on integrated ecological solid waste management to strengthen the
implementation of Republic Act 9003 or the Ecological Solid Waste Management Act of
2000.
EMB-Region I Director Maria Dorica Naz-Hipe stressed the importance of proper
solid waste management and keeping the environment clean not only to protect the beautiful
San Fabian beach which is a prime tourist destination, but also to prevent the spread of
diseases in the municipality.
Municipal Executive Secretary Antonio Supremido, Jr. represented Mayor Constante
Agbayani and thanked Director Hipe, DENR-EMB Region I, and the REC and RIACEE
members for holding the Green Caravan in their municipality.
Environmental Monitoring Officer Gemmalyn Marzan of the EMB-I Ecological Solid
Waste Management Section discussed Republic Act 9003 or the Ecological Solid Waste
Management Act of 2000 and emphasized the significance of composting to reduce residual
wastes being brought to disposal facilities. Mr. Aldjumar de Guzman, Environmental
Management Specialist II and EMB-I Climate Change Alternate Focal Person, presented
climate change mitigation and adaptation strategies. Engr. Judy Ann Sicdoy-Abella,
Environmental Management Specialist II, discussed the salient features of Republic Act 6969
or the Toxic Substances and Hazardous and Nuclear Wastes Control Act of 1990. She also
informed them of the health and environmental effects of hazardous wastes and other toxic
chemicals such as Lead, Mercury, and Persistent Organic Pollutants (POPs) and how to
dispose them in an environmentally sound way. Mr. Jomar Lucena of the Don Mariano
Marcos Memorial State University – North La Union Campus enumerated the geohazards in
Region I such as landslides, floods, typhoons, tsunamis, earthquakes and volcanic eruptions
and appropriate disaster risk reduction strategies. Engr. Antonio L. Estrada, EMB-I
Environmental Monitoring and Enforcement Division Chief, concluded the activity by urging
the barangay officials and senior citizens to apply what they learned in the various
environmental programs and projects in their respective communities.
The REC and RIACEE are both headed by DENR-EMB Region I and composed of the
regional offices of Department of Education, Commission on Higher Education, Department of
Social Welfare and Development, Technical Education and Skills Development Authority,
Department of the Interior and Local Government, Philippine Information Agency, Philippine
National Police, National Economic and Development Authority, Department of Science and
Technology, Department of Public Works and Highways, Department of Trade and Industry,
Department of Agriculture, and Department of Health, including the City of San Fernando, La
Union, Philippine Association of Tertiary Level Educational Institutions in Environmental
Protection and Management, Don Mariano Marcos Memorial State University, and Lupon ng
mga Indibidwal na Nangangalaga sa Kalikasan.
257 REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-EMB Region I holds AIRobics: Indak para sa
Malinis na Hangin
258 REGIONAL STATE OF BROWN ENVIRONMENT 2019
The Environmental Management Bureau (EMB) – Region I of the Department of
Environment and Natural Resources (DENR) held an environmental fitness activity dubbed
“AIRobics: Indak para sa Malinis na Hangin” in celebration of multiple environmental
events: the Philippine Clean Air Month, National Environmental Awareness Month, and
Climate Change Consciousness Week, and launching the 18-Day Campaign to End Violence
Against Women on November 25, 2019 at the Don Mariano Marcos Memorial State
University – Mid La Union Campus (DMMMSU-MLUC) Covered Court, City of San
Fernando, La Union.
About 400 participants from the Region I Offices of the DENR, Department of Public
Works and Highways, Department of the Interior and Local Government, Philippine Navy,
Philippine Overseas Employment Administration, National Police Commission, Commission
on Elections, Philippine National Police, Social Security System, Commission on Higher
Education, Commission on Audit, Overseas Workers Welfare Administration, Bureau of
Internal Revenue, Philippine Drug Enforcement Agency, and Bureau of Fisheries and
Aquatic Resources, Ilocos Training and Regional Medical Center, DMMMSU-MLUC, and
Soiltech joined the said environmental fitness event.
EMB-I Regional Director Maria Dorica Naz-Hipe expressed her gratitude to the
DMMMSU-MLUC for allowing EMB-I to hold the “AIRobics” in their covered court, and
all the participants who took part in the said environmental fitness event. She urged the
attendees to take collaborative actions to keep the air quality clean and healthy and reduce
carboon footprints to mitigate climate change. RD Hipe likewise stressed the importance of
gender equality and encouraged the attendees to make a personal commitment to end
violence against women and children.
Dr. Hartwell Norman Merza, executive assistant to DMMMSU-MLUC Chancellor
Norman Corpuz, lauded the EMB-I for organizing the said environmental fitness activity and
assured RD Hipe that DMMMSU will continue to support the environmental programs of the
Bureau. He also encouraged the public to take a stand against climate change by reducing
greenhouse gas emissions just like the acclaimed climate activist Greta Thunberg.
ZIN Ely Borromeo of La Union and Mr. Alwyn del Rosario and Ms. Divina Gandalla
of Dance Fusion- Manila led the two-hour Zumba dance workout. Twenty participants were
picked through electronic raffle and won giftpacks. RD Hipe also recognized the Zumba
Kings and Queens from PNP-I and Senior Citizens who showcased their best groove and
stamina.
259 REGIONAL STATE OF BROWN ENVIRONMENT 2019
DENR-EMB Region I recognizes model barangays on solid waste
management and eco-friendly schools
260 REGIONAL STATE OF BROWN ENVIRONMENT 2019
The Environmental Management Bureau (EMB) – Region I of the Department of
Environment and Natural Resources (DENR) held the regional awarding ceremonies of the
2019 Search for Model Barangays on Ecological Solid Waste Management and the 2019
National Search for Sustainable and Eco-Friendly Schools on December 13, 2019 at the Plaza
de Castiel Hotel, San Juan, La Union.
EMB-I Regional Director Engr. Maria Dorica Naz-Hipe lauded the winning
barangays and schools and encouraged them to continue and improve the environmental
initiatives that they have started. She likewise stressed the importance of schools and
barangays in imbibing proper management of solid waste and green living values in students
and citizens.
The DENR-EMB 2019 Search for Model Barangay on Ecological Solid Waste
Management aims to demonstrate best practices in segregation at source, segregated
collection, maintenance and operation of Materials Recovery Facility (MRF) and the
implementation of local ordinances pertaining to Republic Act 9003 or the Ecological Solid
Waste Management Act of 2000. Below is the full rundown of all the winners and their
prizes:
CITY CATEGORY
Champion:
Barangay 30, Sta. Maria, Laoag City, Ilocos Norte (plaque and ₱200,000)
Best Materials Recovery Facility:
Barangay San Andres, Candon City, Ilocos Sur (plaque and ₱50,000)
Best Implementer for Segregation at Source:
Barangay Ayusan Norte, Vigan City, Ilocos Sur (plaque and ₱50,000)
Best Implementer for Segregated Collection:
Barangay Polo, Alaminos City, Pangasinan (plaque and ₱50,000)
1ST
-3RD
CLASS MUNICIPALITY
261 REGIONAL STATE OF BROWN ENVIRONMENT 2019
Champion:
Barangay Sta. Barbara, Agoo, La Union (plaque and ₱200,000)
Best Materials Recovery Facility:
Barangay San Jose, San Nicolas, Ilocos Norte (plaque and ₱50,000)
Best Implementer for Segregation at Source:
Barangay Caranglaan, Alcala, Pangasinan (plaque and ₱50,000)
Best Implementer for Segregated Collection:
Barangay Suksukit, Sto. Domingo Ilocos Sur (plaque and ₱50,000)
4TH
– 6TH
CLASS MUNICIPALITY
Champion:
Barangay Caparispisan, Pagudpud Ilocos Norte (plaque and ₱200,000)
Best Materials Recovery Facility:
Barangay San Macario, Natividad, Pangasinan (plaque and ₱50,000)
Best Implementer for Segregation at Source:
Barangay Poblacion, Sudipen, La Union (plaque and ₱50,000)
Best Implementer for Segregated Collection:
Barangay Poblacion, Burgos, Ilocos Norte (plaque and ₱50,000)
The biennial National Search for Sustainable and Eco-Friendly Schools, now on its
6th leg, is organized by the DENR through the EMB, in collaboration with the Department of
Education, Commission on Higher Education, Nestle Philippines, Landbank of the
Philippines, and Meralco. It aims to encourage academic institutions to become more actively
involved in environmental issues at a practical and local level; and to develop skills and
understanding among the students, faculty and school administrators in initiating active
responses and increasing community awareness and participation on environmental concerns.
Below is the full list of regional winners and their prizes:
ELEMENTARY CATEGORY
Regional Winner:
North Central Elementary School, Dagupan City (plaque and ₱15,000)
2nd
Place:
Pagudpud South Central Elementary School, Pagudpud, Ilocos Norte (plaque)
3rd
Place:
Mameltac Elementary School, San Fernando City, La Union (plaque)
Nestle Water Leadership Award:
Balbal-losa Elementary School, San Juan, La Union (plaque and ₱10,000)
Meralco Energy Leadership Award:
Central Elementary School, Pagudpud, Ilocos Norte (plaque and ₱10,000)
HIGH SCHOOL CATEGORY
Regional Winner:
Bangbangolan, National High School, City of San Fernando, La Union
(plaque and ₱15,000)
2nd
Place:
Carael National High School, Dagupan City (plaque)
3rd
Place:
Luzong National High School, Pagudpud, Ilocos Norte (plaque)
Nestle Water Leadership Award:
262 REGIONAL STATE OF BROWN ENVIRONMENT 2019
Bangbangolan, National High School, City of San Fernando, La Union
(plaque and ₱10,000)
Meralco Energy Leadership Award:
Carael National High School, Dagupan City (plaque and ₱10,000)
HIGHER EDUCATION CATEGORY
Regional Winner:
Urdaneta City University, Urdaneta City, Pangasinan (plaque and ₱15,000)
Nestle Water Leadership Award:
Urdaneta City University, Urdaneta City, Pangasinan (plaque and ₱10,000)
Meralco Energy Leadership Award:
Urdaneta City University, Urdaneta City, Pangasinan (plaque and ₱10,000)
A total of 164 participants including Mayor Rosita Rafael of Natividad, Pangasinan,
Mayor Wendy Joy Buquing of Sudipen, La Union, school principals, faculty members,
municipal environment and natural resources officers, punong barangays, and barangay
officials were present to receive their awards. The winning barangays and schools presented
their best practices on solid waste management and other eco-friendly initiatives which can
be replicated by their fellow barangays and schools.